Java: Arithmetic operation on byte

Question

What happened to my code? The following code worked for integer type of data, but couldn\'t work for byte type of data.

public class Exchange {
    public st         


        

Answer 1

Simply, Cast the result of your arithmetic operation to byte as follows:

public class Exchange {
    public static void main(String[] args) {
    //int a = 23, b = 44;
    byte a = 23, b = 44;
    a = (byte) a + b;
    b = (byte) a - b;
    a = (byte) a - b;
    System.out.println("a=" + a + "b=" + b);
    }
}

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