public class SwapNumbers {
public static void main(String[] args) {
float first = 1.20f, second = 2.45f;
System.out.println("–交换前–"); System.out.println("第一个数字 = " + first); System.out.println("第二个数字 = " + second);
//first的值被分配给temporary float temporary = first;
//second的值被赋给first first = second;
//临时的值(包含first的初始值)被赋给second second = temporary;
System.out.println("–交换后–"); System.out.println("第一个数字 = " + first); System.out.println("第二个数字 = " + second); } }
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