Stack remove(Object) method in Java with Example

The Java.util.Stack.remove(Object o) method is used to remove any particular element from the Stack.

Syntax:

Stack.remove(Object o)

Parameters: This method accepts a mandatory parameter o is of the object type of Stack and specifies the element to be removed from the Stack.

Return Value: Returns True if the specified element is found and removed from the Stack, else False.

Below program illustrate the Java.util.Stack.remove(Object o) method:

Example 1:

// Java code to illustrate remove() when position of
// element is passed as parameter

import java.util.*;

public class StackDemo {
    public static void main(String args[])
    {

        // Creating an empty Stack
        Stack<String> stack = new Stack<String>();

        // Use add() method to add elements in the Stack
        stack.add("Geeks");
        stack.add("for");
        stack.add("Geeks");
        stack.add("10");
        stack.add("20");

        // Output the Stack
        System.out.println("Stack: " + stack);

        // Remove the element using remove()
        boolean res = stack.remove("20");

        // Print the removed element
        System.out.println("Was 20 removed: "
                           + res);

        // Print the final Stack
        System.out.println("Final Stack: "
                           + stack);
    }
}

Output:

Stack: [Geeks, for, Geeks, 10, 20]
Was 20 removed: true
Final Stack: [Geeks, for, Geeks, 10]

Example 2:

// Java code to illustrate remove() when position of
// element is passed as parameter

import java.util.*;

public class StackDemo {
    public static void main(String args[])
    {

        // Creating an empty Stack
        Stack<Integer> stack = new Stack<Integer>();

        // Use add() method to add elements in the Stack
        stack.add(10);
        stack.add(20);
        stack.add(30);
        stack.add(40);
        stack.add(50);

        // Output the Stack
        System.out.println("Stack: " + stack);

        // Remove the element using remove()
        boolean res = stack.remove("100");

        // Print the removed element
        System.out.println("Was 100 removed: "
                           + res);

        // Print the final Stack
        System.out.println("Final Stack: "
                           + stack);
    }
}

Output:

Stack: [10, 20, 30, 40, 50]
Was 100 removed: false
Final Stack: [10, 20, 30, 40, 50]