Java Example - Array Expansion

黄舟

Release： 2017-02-18 10:14:05

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The following example demonstrates how to expand the array after the array is initialized:

/*
 author by w3cschool.cc
 文件名：Main.java
 */public class Main {
   public static void main(String[] args) {
      String[] names = new String[] { "A", "B", "C" };
      String[] extended = new String[5];
      extended[3] = "D";
      extended[4] = "E";
      System.arraycopy(names, 0, extended, 0, names.length);
      for (String str : extended){
         System.out.println(str);
      }
   }}

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The output result of running the above code is:

A
B
C
D
E

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