Java 示例 - 从另一个数组中删除一个数组

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  问题描述

  如何从另一个数组中删除一个数组？
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  解决方案

  以下示例使用 Removeall 方法从另一个数组中删除一个数组。

  
  import java.util.ArrayList;
  public class Main {
     public static void main(String[] args)  {
        ArrayList objArray = new ArrayList();
        ArrayList objArray2 = new ArrayList();
        objArray2.add(0,"common1");
        objArray2.add(1,"common2");
        objArray2.add(2,"notcommon");
        objArray2.add(3,"notcommon1");
        objArray.add(0,"common1");
        objArray.add(1,"common2");
        objArray.add(2,"notcommon2");
        System.out.println("Array elements of array1" +objArray);
        System.out.println("Array elements of array2" +objArray2);
        objArray.removeAll(objArray2);
        System.out.println("Array1 after removing array2 from array1"+objArray);
     }
  }
  

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  结果

  上面的代码示例将产生以下结果。

  
  Array elements of array1[common1, common2, notcommon2]
  Array elements of array2[common1, common2, notcommon, notcommon1]
  Array1 after removing array2 from array1[notcommon2]