ArrayList.contains(Object) in Java

ArrayList.contains(Object): This method is available in java.util.ArrayList class of Java.

Syntax:

boolean java.util.ArrayList.contains(Object o)

This method takes one argument . This method returns true if this list contains the specified element.

Parameters: One parameter is required for this method.

o: element whose presence in this list is to be tested.

Returns: true if this list contains the specified element.

Exceptions: NA

Approach

Java

import java.util.ArrayList;

public class ArrayListcontains {
    public static void main(String[] args) {
        ArrayList<Integer> arr = new ArrayList<>();
        arr.add(1);
        arr.add(2);
        arr.add(3);

        Integer o = 3;
        System.out.println(arr.contains(o));
    }
}

Output:

true