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String str="ÖÐÎÄ";
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java Ïà¶Ô·¾¶

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java compare ½Ó¿Ú

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   return (thisVal<anotherVal ? -1 : (thisVal==anotherVal ? 0 : 1));
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java HashSetÈ¥ÖØÊ¾Àý

import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
public class HashSetDemo {

public static void main(String[] args){
List tableList = new ArrayList();
tableList.add("hello");
tableList.add("hell0");
tableList.add("world");
......
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