How to check whether element is in the array in Java?

Java 8Object Oriented ProgrammingProgramming

Following example uses Contains method to search a String in the Array.


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) ); 


The above code sample will produce the following result.

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

Updated on 24-Feb-2020 10:55:45