IT. Expert System.

This method is used to Pushes an item onto the top of this stack.

Syntax:

Library: java.util.Stack

public Object push(Object item)

Example:

package com.tutorialspoint;

import java.util.*;

public class StackDemo {
   public static void main(String args[]) {
      // creating stack
      Stack st = new Stack();
      
      // populating stack
      st.push("Java");
      st.push("Source");
      st.push("code");

      // checking elements
      System.out.println("Elements in the stack: "+st);
   }     
}

Output:

Elements in the stack: [Java, Source, code]

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