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Javier fr
Asked: 2020-12-10 08:42:36 +0800 CST 2020-12-10 08:42:36 +0800 CST

What do the following lines of code do in Java?

  • 772

Good morning, a question, what does the following lines of code do?

public static void main (String[] ars) {
    int suma = 0;
    for (int x=1;x<=100;x++) {          
        if (x%2!=0) suma+=x;
    }
}
java

2 Answers

  1. Best Answer

    Here's an explanation of what the code does:

    public static void main(String[] args) {
    // INICIALIZA LA VARIABLE "suma" CON 0 
    int suma = 0;
    // SE ITERA DE 1 AL 100 CON SALTOS DE 1
    for (int x = 1; x <= 100; x++) {
        // VERIFICA QUE LOS NUMEROS NO SEAN PARES CON EL MODULO(%)
        if (x % 2 != 0)
            suma += x; // LA VARIABLE "suma" ACUMULA LA SUMA DE TODOS LOS NUMEROS IMPARES
    }
}

    In this case, the numbers of the series will be added:

    1 + 3 + 5 + 7 + ... + 99 = 2500
    • 4

  2. What is being executed in those lines of code is that the variable "x" that is declared inside the parentheses of the "for" takes the values ​​from 0 to 100 and after "x" assumes a value, it asks if the number is not even and since it is not, it adds to the variable "sum" the value that "x" has at that moment. That is the function of "for" to traverse a range, making a variable in this case "x" take all the values ​​from the beginning of the range to the end.

    • 0