IT. Expert System.

This method is used to look at the object at the top of this stack without removing it from the stack.

Syntax:

Library:  java.util.Stack

public Object peek()

Example:

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 the top object
      System.out.println("Top object is: "+st.peek());
   }     
}
Output:

Top object is: code

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