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package com.homework; |
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public class TestMain { |
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public static void main(String[] args) { |
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Pair<String, Integer> pair = new Pair<>("年龄", 20); |
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System.out.println("交换前:" + pair); |
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pair.swap(); |
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System.out.println("交换后:" + pair); |
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Cache<String, String> cache = new Cache<>(); |
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cache.put("name", "张三"); |
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cache.put("id", "20260001"); |
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System.out.println("缓存获取name:" + cache.get("name")); |
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System.out.println("缓存是否包含id:" + cache.containsKey("id")); |
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} |
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} |
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