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StackExample.java
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StackExample.java
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import java.util.*;
public class StackExample
{
public static void main(String[] args)
{
Stack<Integer> obj=new Stack<Integer>();
//push() -This method pushes an element from the Stack and returns it.
obj.push(45);
obj.push(65);
obj.push(23);
obj.push(1);
obj.push(90);
obj.push(84);
obj.push(23);
//peek()- this method returns the top most element in the Stock without removing it.
System.out.println("Top element of the Stack is:"+obj.peek());
//search() - this method returns the position of an element obj on to the top of the Stack or if the element is not found in the Stock then it returns -1.
System.out.println("The position of the 23 is :"+obj.search(23));
System.out.println("The position of the 99 is:"+obj.search(99));
//pop()- this method deletes the top most element from the stack and returns it.
System.out.println("the popped elemnt is:"+obj.pop());
System.out.println("the popped elemnt is:"+obj.pop());
System.out.println("the popped elemnt is:"+obj.pop());
System.out.println("the popped elemnt is:"+obj.pop());
//empty() - This method tests whether the stack is empty or not.if stock is Empty it returns True otherwise false.
System.out.println("The stock is empty:"+obj.empty());
System.out.println("the popped elemnt is:"+obj.pop());
System.out.println("the popped elemnt is:"+obj.pop());
System.out.println("the popped elemnt is:"+obj.pop());
System.out.println("The stock is empty:"+obj.empty());
}
}
//OUTPUT:
/*
Top element of the Stack is:23
The position of the 23 is :1
The position of the 99 is:-1
the popped elemnt is:23
the popped elemnt is:84
the popped elemnt is:90
the popped elemnt is:1
The stock is empty:false
the popped elemnt is:23
the popped elemnt is:65
the popped elemnt is:45
The stock is empty:true
*/