以下实例演示了如何使用 removeAll () 方法来计算两个数组的差集:
Main.java 文件:
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("array1 的元素" +objArray); System.out.println("array2 的元素" +objArray2); objArray.removeAll(objArray2); System.out.println("array1 与 array2 数组差集为:"+objArray); } }
原文链接:https://www.f2er.com/java/526470.htmlarray1 的元素[common1,common2,notcommon2]
array2 的元素[common1,notcommon,notcommon1]
array1 与 array2 数组差集为:[notcommon2]