How to swap two values in Java using a supporting method?
public class SwapValues {
/*
* To effect the swapping, arrays of size 1
* are used since array variables store the
* address of the value.
*/
public static void main(String[] args) {
int[] val1 = new int[] { 12 }, val2 = new int[] { 13 };
System.out.println(val1[0] + ", " + val2[0]); // 12, 13
swapValues(val1, val2);
System.out.println(val1[0] + ", " + val2[0]); // 13, 12
}
private static void swapValues(int[] val1, int[] val2) {
int temp = val1[0];
val1[0] = val2[0];
val2[0] = temp;
}
}