Stack size() method in Java with Example
The Java.util.Stack.size() method in Java is used to get the size of the Stack or the number of elements present in the Stack.
Syntax:
Stack.size()
Parameters: The method does not take any parameter.
Return Value: The method returns the size or the number of elements present in the Stack.
Below programs illustrate the Java.util.Stack.size() method:
Program 1: Stack with string elements.
import java.util.*;
public class StackDemo {
public static void main(String args[])
{
Stack<String> stack = new Stack<String>();
stack.add( "Welcome" );
stack.add( "To" );
stack.add( "Geeks" );
stack.add( "4" );
stack.add( "Geeks" );
System.out.println( "Stack: " + stack);
System.out.println( "The size is: " + stack.size());
}
}
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Output:
Stack: [Welcome, To, Geeks, 4, Geeks]
The size is: 5
Program 2: Stack with integer elements.
import java.util.*;
public class StackDemo {
public static void main(String args[])
{
Stack<Integer> stack = new Stack<Integer>();
stack.add( 10 );
stack.add( 15 );
stack.add( 30 );
stack.add( 20 );
stack.add( 5 );
System.out.println( "Stack: " + stack);
System.out.println( "The size is: " + stack.size());
}
}
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Output:
Stack: [10, 15, 30, 20, 5]
The size is: 5
Last Updated :
24 Dec, 2018
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