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Merge pull request mouredev#5419 from kronstadt-lambda/main
#1 - Java
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‎Roadmap/01 - OPERADORES Y ESTRUCTURAS DE CONTROL/java/Kronstadt-Lambda.java‎

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/**
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* @author KronstadtLambda
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* @version 1.0
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*/
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// package roadmap.java.r01;
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public class KronstadtLambda {
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public static int suma(int a, int b) {
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return a + b; // Return the sum of a and b
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}
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public static void main(String[] args) {
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// Initialize variables
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float float_a = 2.0f;
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float float_b = 2.0f;
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int bit_a = 0b01000001;
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int bit_b = 0b01010011;
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String day = "Monday";
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int edad = 1;
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boolean isBool;
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int[] numbers = {1, 2, 3, 4, 5};
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/*
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* Operators in Java
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*/
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// Arithmetic operators
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System.out.println("float_a + float_b = " + (float_a + float_b));
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System.out.println("float_a - float_b = " + (float_a - float_b));
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System.out.println("float_a * float_b = " + (float_a * float_b));
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System.out.println("float_a / float_b = " + (float_a / float_b));
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System.out.println("float_a % float_b = " + (float_a % float_b)); // Remainder of the division
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System.out.println("float_a++ = " + (float_a++)); // Post-increment
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System.out.println("float_a-- = " + (float_a--)); // Post-decrement
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System.out.println("++float_a = " + (++float_a)); // Pre-increment
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System.out.println("--float_a = " + (--float_a)); // Pre-decrement
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// Assignment operators
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System.out.println("float_a += float_b -> " + (float_a += float_b)); // float_a = float_a + float_b
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System.out.println("float_a -= float_b -> " + (float_a -= float_b)); // float_a = float_a - float_b
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System.out.println("float_a *= float_b -> " + (float_a *= float_b)); // float_a = float_a * float_b
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System.out.println("float_a /= float_b -> " + (float_a /= float_b)); // float_a = float_a / float_b
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System.out.println("float_a %= float_b -> " + (float_a %= float_b)); // float_a = float_a % float_b
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System.out.println("bit_a &= bit_b -> " + (bit_a &= bit_b)); // bit_a = bit_a & bit_b (bitwise AND)
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System.out.println("bit_a |= bit_b -> " + (bit_a |= bit_b)); // bit_a = bit_a | bit_b (bitwise OR)
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System.out.println("bit_a ^= bit_b -> " + (bit_a ^= bit_b)); // bit_a = bit_a ^ bit_b (bitwise XOR)
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System.out.println("bit_a >>= 1 -> " + (bit_a >>= 1)); // bit_a = int_a >> 1 (bitwise right shift)
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System.out.println("bit_a <<= 1 -> " + (bit_a <<= 1)); // bit_a = int_a << 1 (bitwise left shift)
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// Comparison operators
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System.out.println("float_a == float_b -> " + (float_a == float_b)); // Equal to
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System.out.println("float_a != float_b -> " + (float_a != float_b)); // Not equal to
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System.out.println("float_a > float_b -> " + (float_a > float_b)); // Greater than
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System.out.println("float_a < float_b -> " + (float_a < float_b)); // Less than
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System.out.println("float_a >= float_b -> " + (float_a >= float_b)); // Greater than or equal to
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System.out.println("float_a <= float_b -> " + (float_a <= float_b)); // Less than or equal to
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// Logical operators
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System.out.println("float_a == float_b && float_a != 0 -> " + (float_a == float_b && float_a != 0)); // Logical AND
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System.out.println("float_a == float_b || float_a != 0 -> " + (float_a == float_b || float_a != 0)); // Logical OR
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System.out.println("!(float_a == float_b) -> " + !(float_a == float_b)); // Logical NOT
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// Bitwise operators
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System.out.println("bit_a & bit_b -> " + (bit_a & bit_b)); // Bitwise AND
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System.out.println("bit_a | bit_b -> " + (bit_a | bit_b)); // Bitwise OR
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System.out.println("bit_a ^ bit_b -> " + (bit_a ^ bit_b)); // Bitwise XOR
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System.out.println("~bit_a -> " + (~bit_a)); // Bitwise NOT
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System.out.println("bit_a >> 1 -> " + (bit_a >> 1)); // Bitwise right shift
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System.out.println("bit_a << 1 -> " + (bit_a << 1)); // Bitwise left shift
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System.out.println("bit_a >>> 1 -> " + (bit_a >>> 1)); // Bitwise right shift with zero fill
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// Java don't have identity and membership operators
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/*
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* Control structures in Java
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*/
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// If, if-else, else statement
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if (float_a == float_b) {
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System.out.println("float_a is equal to float_b");
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} else if (float_a > float_b) {
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System.out.println("float_a is greater than float_b");
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} else {
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System.out.println("float_a is less than float_b");
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}
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// Switch statement
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switch (day) {
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case "Monday":
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System.out.println("Today is Monday");
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break; // Exit the switch statement to avoid fall-through
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case "Tuesday":
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System.out.println("Today is Tuesday");
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break; // Exit the switch statement to avoid fall-through
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case "Wednesday":
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System.out.println("Today is Wednesday");
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break; // Exit the switch statement to avoid fall-through
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case "Thursday":
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System.out.println("Today is Thursday");
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break; // Exit the switch statement to avoid fall-through
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case "Friday":
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System.out.println("Today is Friday");
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break; // Exit the switch statement to avoid fall-through
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case "Saturday":
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System.out.println("Today is Saturday");
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break; // Exit the switch statement to avoid fall-through
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case "Sunday":
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System.out.println("Today is Sunday");
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break; // Exit the switch statement to avoid fall-through
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default: // if none of the above cases are true
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System.out.println("Invalid day");
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break; // Exit the switch statement to avoid fall-through
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}
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// For loop
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for (int i = 10; i >= 0; i--) {
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System.out.println("The loop end in ... " + i);
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}
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// While loop
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while (edad < 18) {
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System.out.println("You are " + edad + " years old");
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edad++;
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}
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// do-while loop
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do {
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isBool = false;
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System.out.println("At least one execution");
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} while (isBool);
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// For-each loop
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for (int number : numbers) {
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System.out.println("Square of " + number + " is " + number * number);
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}
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// break statement
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for (int i = 0; i < 10; i++) {
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if (i == 5) {
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System.out.println("Break in i = " + i);
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break; // Exit the loop
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}
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System.out.println("i = " + i);
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}
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// continue statement
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for (int i = 0; i < 10; i++) {
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if (i == 5) {
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System.out.println("Continue (skip) in i = " + i);
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continue; // Skip the rest of the loop
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}
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System.out.println("Cube of " + i + " is " + i * i * i);
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}
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// return statement
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System.out.println("The sum of 5 and 7 is " + suma(5, 7));
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// try-catch
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try {
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int[] array = {1, 2, 3};
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System.out.println(array[3]); // ArrayIndexOutOfBoundsException
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} catch (ArrayIndexOutOfBoundsException e) {
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System.out.println("Array index out of bounds");
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}
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// try-catch-finally
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try {
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int[] array = {1, 2, 3};
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System.out.println(array[3]); // ArrayIndexOutOfBoundsException
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} catch (ArrayIndexOutOfBoundsException e) {
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System.out.println("Array index out of bounds"); // Execute if an exception is thrown
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} finally {
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System.out.println("Finally block executed"); // Necesary for close resources or other actions
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}
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// throw statement
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try {
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throw new ArithmeticException("Arithmetic exception"); // Intentionally throw an exception
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/*
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* It is useful for testing the behavior of the program when an exception is thrown like error handling.
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*/
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} catch (ArithmeticException e) {
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System.out.println(e.getMessage());
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}
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/*
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* Extra exercise
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* Create a program that prints to the console all numbers between 10 and 55 (inclusive), even, and that are neither 16 nor multiples of 3
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*/
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for (int i = 10; i <= 55; i++) {
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if (i % 2 == 0 && i != 16 && i % 3 != 0) {
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System.out.println("The solution is " + i);
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}
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}
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}
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}

‎Roadmap/01 - OPERADORES Y ESTRUCTURAS DE CONTROL/javascript/Kronstadt-Lambda.js‎

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/**
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* @author: Kronstadt-Lambda
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* @version: 1.0
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*/
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// Initialize variables
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let float_a = 2.0;
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let float_b = 2.0;
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let bit_a = 0b00000101;
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let bit_b = 0b00000110;
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const day = "Wendesday";
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let edad = 1;
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let isBool;
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const person = { name: "Jhon", age: 30 };
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const numbers = [1, 2, 3];
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/**
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* Operators in JavaScript
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*/
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// Arithmetic operators
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console.log("Addition:", float_a + float_b);
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console.log("Subtraction:", float_a - float_b);
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console.log("Multiplication:", float_a * float_b);
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console.log("Division:", float_a / float_b);
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console.log("Exponentiation:", float_a ** float_b);
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console.log("Modulus:", float_a % float_b);
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console.log("Pre-Increment:", ++float_a);
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console.log("Pre-Decrement:", --float_a);
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console.log("Post-increment:", float_a++);
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console.log("Post-decrement:", float_a--);
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// Assignment operators
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console.log("Simple Assignment:", float_a = float_b);
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console.log("Addition Assignment:", float_a += float_b);
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console.log("Subtraction Assignment:", float_a -= float_b);
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console.log("Multiplication Assignment:", float_a *= float_b);
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console.log("Division Assignment:", float_a /= float_b);
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console.log("Exponentiation Assignment:", float_a **= float_b);
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console.log("Modulus Assignment:", float_a %= float_b);
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console.log("Bitwise AND Assignment:", bit_a &= bit_b);
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console.log("Bitwise OR Assignment:", bit_a |= bit_b);
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console.log("Bitwise XOR Assignment:", bit_a ^= bit_b);
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console.log("Left Shift Assignment:", bit_a <<= bit_b);
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console.log("Right Shift Assignment:", bit_a >>= bit_b);
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// Comparison operators
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console.log("Equal to:", float_a == float_b);
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console.log("Not equal to:", float_a != float_b);
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console.log("Strict equal (value and type) to:", float_a === float_b);
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console.log("Strict not equal (value and type) to:", float_a !== float_b);
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console.log("Greater than:", float_a > float_b);
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console.log("Less than:", float_a < float_b);
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console.log("Greater than or equal to:", float_a >= float_b);
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console.log("Less than or equal to:", float_a <= float_b);
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// Logical operators
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console.log("Logical AND:", true && false);
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console.log("Logical OR:", true || false);
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console.log("Logical NOT:", !true);
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// Bitwise operators
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console.log("Bitwise AND:", bit_a & bit_b);
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console.log("Bitwise OR:", bit_a | bit_b);
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console.log("Bitwise XOR:", bit_a ^ bit_b);
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console.log("Bitwise NOT:", ~bit_a);
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console.log("Left Shift:", bit_a << 1);
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console.log("Right Shift:", bit_a >> 1);
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console.log("Zero-fill Right Shift:", bit_a >>> 1);
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// Identity operators
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console.log("Equal value and type:", float_a === float_b);
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console.log("Not equal value or not equal type:", float_a !== float_b);
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// Membership operators
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console.log("Is in:", 'name' in person); // Verify if the property exists in the object
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console.log("Is not in:", 'lastname' in person); // Verify if the property does not exist in the object
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console.log("Is in:", numbers.includes(2)); // Verify if the value exists in the array
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/**
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* Control structures in JavaScript
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*/
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// If, if-else, else statement
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if (float_a === float_b) {
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console.log("The numbers are equal.");
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} else if (float_a > float_b) {
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console.log("float_a is greater than float_b.");
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} else {
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console.log("float_a is less than float_b.");
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}
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// Switch statement
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switch (day) {
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case "Monday":
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console.log("Today is Monday.");
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break; // Exit the switch statement to avoid executing the next cases
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case "Tuesday":
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console.log("Today is Tuesday.");
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break; // Exit the switch statement to avoid executing the next cases
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case "Wednesday":
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console.log("Today is Wednesday.");
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break; // Exit the switch statement to avoid executing the next cases
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case "Thursday":
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console.log("Today is Thursday.");
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break; // Exit the switch statement to avoid executing the next cases
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case "Friday":
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console.log("Today is Friday.");
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break; // Exit the switch statement to avoid executing the next cases
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default: // If no case matches
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console.log("It's the weekend.");
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break; // Exit the switch statement to avoid executing the next cases
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}
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// For loop
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for (let i = 10; i >= 0; i--) {
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console.log("The loop end in ...", i);
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}
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// While loop
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while (edad < 18) {
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console.log("I am ", edad, " years old.");
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edad++;
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}
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// Do-while loop
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do {
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isBool = false;
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console.log("At least one execution.");
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} while (isBool);
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// For-in loop: Usefull for objects
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for (let key in person) {
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console.log(key, ":", person[key]);
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}
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// For-of loop: Usefull for arrays
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for (let number of numbers) {
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console.log("Number:", number);
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}
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// Break statement
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for (let i = 0; i < 10; i++) {
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if (i === 5) {
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console.log("Break at:", i);
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break; // Exit the loop
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}
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console.log("i = :", i);
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}
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// Continue statement
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for (let i = 0; i < 10; i++) {
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if (i === 5) {
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console.log("Continue (skip) at:", i);
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continue; // Skip the current iteration
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}
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console.log("Cube of", i, "is", i ** 3);
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}
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// Label statement: Exit an outer loop
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outerloop: for (let i = 0; i < 5; i++) {
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console.log("Outerloop:", i);
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innerloop: for (let j = 0; j < 5; j++) {
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if (j === 3) {
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break outerloop; // Exit the outer loop
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}
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console.log("Innerloop:", j);
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}
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}
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// Return statement: Exit a function
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function add(a, b) {
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return a + b;
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}
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// try-catch-finally statement: Handle exceptions
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try {
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console.log(numbers[3]);
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} catch (error) {
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console.error("An error occurred:", error);
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} finally {
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console.log("Finally block.");
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}
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/**
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* Extra exercises
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* Create a program that prints to the console all numbers between 10 and 55 (inclusive), even, and that are neither 16 nor multiples of 3
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*/
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for (let i = 10; i <= 55; i++) {
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if (i % 2 === 0 && i !== 16 && i % 3 !== 0) {
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console.log("The solution is: ", i);
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}
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}

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