Stack containsAll() method in Java with Example
The containsAll() method of Java Stack is used to check whether two stacks contain the same elements or not. It takes one stack as a parameter and returns True if all of the elements of this stack is present in the other stack.
Syntax:
public boolean containsAll(Collection C)
Parameters: The parameter C is a Collection. This parameter refers to the stack whose elements occurrence is needed to be checked in this stack.
Return Value: The method returns True if this stack contains all the elements of other stack otherwise it returns False.
Below programs illustrate the Stack.containsAll() method:
Program 1:
import java.util.*;
class StackDemo {
public static void main(String args[])
{
Stack<String>
stack = new Stack<String>();
stack.add( "Geeks" );
stack.add( "for" );
stack.add( "Geeks" );
stack.add( "10" );
stack.add( "20" );
System.out.println( "Stack 1: "
+ stack);
Stack<String>
stack2 = new Stack<String>();
stack2.add( "Geeks" );
stack2.add( "for" );
stack2.add( "Geeks" );
stack2.add( "10" );
stack2.add( "20" );
System.out.println( "Stack 2: "
+ stack2);
System.out.println( "\nDoes stack 1 contains stack 2: "
+ stack.containsAll(stack2));
}
}
|
Output:
Stack 1: [Geeks, for, Geeks, 10, 20]
Stack 2: [Geeks, for, Geeks, 10, 20]
Does stack 1 contains stack 2: true
Program 2:
import java.util.*;
class StackDemo {
public static void main(String args[])
{
Stack<String>
stack = new Stack<String>();
stack.add( "Geeks" );
stack.add( "for" );
stack.add( "Geeks" );
System.out.println( "Stack 1: "
+ stack);
Stack<String>
stack2 = new Stack<String>();
stack2.add( "10" );
stack2.add( "20" );
System.out.println( "Stack 2: "
+ stack2);
System.out.println( "\nDoes stack 1 contains stack 2: "
+ stack.containsAll(stack2));
}
}
|
Output:
Stack 1: [Geeks, for, Geeks]
Stack 2: [10, 20]
Does stack 1 contains stack 2: false
Last Updated :
24 Dec, 2018
Like Article
Save Article
Share your thoughts in the comments
Please Login to comment...