求详细解答这个java程序的解答和步骤，请详细点，谢谢

您好
1.先用2个变量存左右手牌 和一个中间变量
int left(左) = 8;
int right(右) = 10;
int temp(中间变量) ;
2. 换值
temp = left(左);
left = right(右);
right(右) = temp;

程序实现 可ctrl+c 直接可用 纯属手打 可以采纳
public class Demo{
public static void main(String[] args){
int left = 8;
int right = 10;
int temp ;
System.out.println("互换前:");

System.out.println("左边为:"+left);
System.out.println("右边为:"+right);

temp = left(左);

left = right(右);
right(右) = temp;
System.out.println("互换后:");

System.out.println("左边为:"+left);
System.out.println("右边为:"+right);
}
}