如何检查元素是否在Java中的数组中？
以下示例使用Contains方法在数组中搜索字符串。
示例
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");
System.out.println("Array elements of array1"+objArray);
System.out.println("Array elements of array2"+objArray2);
System.out.println("Array 1 contains String common2?? " +objArray.contains("common1")); System.out.println("Array 2 contains Array1?? " +objArray2.contains(objArray) ); } }输出结果
上面的代码示例将产生以下结果。
Array elements of array1[common1, common2] Array elements of array2[common1, common2, notcommon, notcommon1] Array 1 contains String common2?? true Array 2 contains Array1?? false
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