Java 實例 – 數(shù)組擴容

Java 實例 - 數(shù)組擴容

Java 實例

以下實例演示了如何在數(shù)組初始化后對數(shù)組進行擴容：

/*
 author by w3cschool.cn
 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);
      }
   }
}

以上代碼運行輸出結(jié)果為：

A
B
C
D
E

Java 實例