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public class PassValue{
static void exchange(int a, int b){//¾²Ì¬·½·¨£¬½»»»a,bµÄÖµ
int temp;
temp = a;
a = b;
b = temp;
}
public static void main(String[] args){
int i = 10;
int j = 100;
System.out.println("before call: " + "i=" + i + "\t" + "j = " + j);//µ÷ÓÃǰ
exchange(i, j); //Öµ´«µÝ£¬main·½·¨Ö»Äܵ÷Óþ²Ì¬·½·¨
System.out.println("after call: " + "i=" + i + "\t" + "j = " + j);//µ÷Óúó
}
}
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before call: i = 10 j = 100
after call: i
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