public static void swap(int[]arr,int indexA,int indexB){
int temp = arr[indexA];
arr[indexA] = arr[indexB];
arr[indexB] =temp;
}
public static void main(String[] args) {
int a=10;
int b=20;
int[] arr = {a,b};
swap(arr,0,1);
System.out.println(arr[0]+" "+arr[1]);
}
swap交换的用法
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转载自blog.csdn.net/weixin_44827160/article/details/88921089
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