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Remove an element from a Stack in Java
An element can be removed from a stack using the java.util.Stack.pop() method. This method requires no parameters and it removes the element at the top of the stack. It returns the element that was removed.
A program that demonstrates this is given as follows −
Example
import java.util.Stack;
public class Demo {
public static void main (String args[]) {
Stack stack = new Stack();
stack.push("Apple");
stack.push("Mango");
stack.push("Guava");
stack.push("Pear");
stack.push("Orange");
System.out.println("The stack elements are: " + stack);
System.out.println("The element that was popped is: " + stack.pop());
System.out.println("The stack elements are: " + stack);
}
}Output
The stack elements are: [Apple, Mango, Guava, Pear, Orange] The element that was popped is: Orange The stack elements are: [Apple, Mango, Guava, Pear]
Now let us understand the above program.
The Stack is created. Then Stack.push() method is used to add the elements to the stack. The stack is displayed. A code snippet which demonstrates this is as follows −
Stack stack = new Stack();
stack.push("Apple");
stack.push("Mango");
stack.push("Guava");
stack.push("Pear");
stack.push("Orange");
System.out.println("The stack elements are: " + stack);The Stack.pop() method is used to remove the top element of the stack and display it. Then the stack is again displayed. A code snippet which demonstrates this is as follows −
System.out.println("The element that was popped is: " + stack.pop());
System.out.println("The stack elements are: " + stack);
Updated on: 30-Jul-2019
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