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21 lines
579 B
21 lines
579 B
package com.example.W8;
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// 导入Pair类
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import com.example.W8.Pair;
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public class PairTest {
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public static void main(String[] args) {
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Pair<String, Integer> p1 = new Pair<>("小明", 18);
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Pair<String, Integer> p2 = new Pair<>("小红", 19);
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System.out.println("交换前：");
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System.out.println("p1 = " + p1);
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System.out.println("p2 = " + p2);
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Pair.swap(p1, p2);
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System.out.println("\n交换后：");
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System.out.println("p1 = " + p1);
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System.out.println("p2 = " + p2);
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}
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}
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