Java 数据结构 - 合并两个数组

一种方法是，创建一个长度等于两个数组长度之和的数组，然后将两个数组的元素逐个添加到其中。

示例

import java.util.Arrays;

public class JoiningTwoArrays {
   public static void main(String args[]) {
      String[] arr1 = {"JavaFX", "OpenNLP", "OpenCV", "Java"};
      String[] arr2 = {"Hadoop", "Sqoop", "HBase", "Hive" }; 
      String[] result = new String[arr1.length+arr2.length];
      int count = 0;	  
      
      for(int i = 0; i<arr1.length; i++ ) {
         result[i] = arr1[i];
         count++;
      }

      for(int i = 0; i<arr2.length; i++ ) {
         result[count++] = arr2[i];
      }
      
      System.out.println("Contents of the resultant array ::");
      System.out.println(Arrays.toString(result));
   }
}

输出

Contents of the resultant array ::
[JavaFX, OpenNLP, OpenCV, Java, Hadoop, Sqoop, HBase, Hive]