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9 lines
270 B
9 lines
270 B
public class Main {
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public void main(){
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Pair pair=new Pair("鞋子",7);
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Pair pair2=pair.swap(pair);
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Object a=pair2.getkey();
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Object b=pair2.getvalue();
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System.out.println("pair2的key是 "+a+" value 是 "+b);
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}
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}
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