How java exchanges the values of two variables

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Exchange the values of two variables public class TestDemo {public static void swap (int [] array) {int tmp = array [0]; array [0] = array [1]; array [1] = tmp;} public static void main (String [] args) {int [] array = {10 Magi 20}; System.out.println ("before Exchange:" + array [0] + "+ array [1]) Swap (array); System.out.println ("after exchange:" + array [0] + "+ array [1]);}

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