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Java Example - Convert Collection to Array

黄舟
黄舟Original
2017-01-21 11:18:521036browse

The following example demonstrates how to use the list.add() and list.toArray() methods of the Java Util class to convert a collection into an array:

/*
 author by w3cschool.cc
 Main.java
 */

import java.util.*;

public class Main{
   public static void main(String[] args){
      List<String> list = new ArrayList<String>();
      list.add("菜"); 
      list.add("鸟"); 
      list.add("教");
      list.add("程");
      list.add("www.w3cschool.cc");
      String[] s1 = list.toArray(new String[0]); 
      for(int i = 0; i < s1.length; ++i){
         String contents = s1[i];
         System.out.print(contents);
     } 
   }
}

The output of the above code is: :

菜鸟教程www.w3cschool.cc

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