Check if an element exists in ArrayList in Java

The contains() of the ArrayList class checks to see if an object belongs to the list. If found, it returns true, otherwise false.

import java.util.ArrayList; 

public class ArrayListContains{ 
 
 public static void main(String[] args) {
 
 // Create an ArrayList< String> 
 ArrayList< String> arraylist = new ArrayList< String> (); 
 
 //populate ArrayList
 arraylist.add("2"); 
 arraylist.add("8"); 
 arraylist.add("42"); 
 arraylist.add("37"); 
 arraylist.add("15"); 
 arraylist.add("4"); 
 arraylist.add("24"); 
 
 System.out.println("37 exists?: "+arraylist.contains("37")); 
 System.out.println("25 exists?: "+arraylist.contains("25")); 
 }
}

Runtime:

37 exists?: true
25 exists?: false

Check if an element exists in ArrayList in Java

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