java swap

附c swap:

#include <stdio.h>

void swap(int x,int y);

void swapR(int &x,int &y);

int main() { int x = 10,y = 20;

printf("%s%d\t%s%d\n","being: x=",x ,"y=",y);
    swap(x,y);
    printf("%s%d\t%s%d\n","swap: x=",x ,"y=",y);
    swapR(x,y);
    printf("%s%d\t%s%d\n","swapR: x=",x ,"y=",y); return 0;
} void swap(int x , int y) { int temp=0;
    temp = x;
    x = y;
    y = temp;
}
 void swapR(int &x , int &y) { int temp=0;
    temp = x;
    x = y;
    y = temp;
}