ArrayDeque element() Method in Java
The java.util.ArrayDeque.element() method in Java is used to retrieve or fetch the head of the ArrayDeque. In the process, the method does not delete the element from the deque instead it just returns the element.
Syntax:
Array_Deque.element()
Parameters: The method does not take any parameter.
Return Value: The method returns the element present at the head of the Deque.
Below programs illustrate the Java.util.ArrayDeque.element() method:
Program 1:
import java.util.*;
public class ArrayDequeDemo {
public static void main(String args[])
{
ArrayDeque<String> de_que = new ArrayDeque<String>();
de_que.add( "Welcome" );
de_que.add( "To" );
de_que.add( "Geeks" );
de_que.add( "4" );
de_que.add( "Geeks" );
System.out.println( "ArrayDeque: " + de_que);
System.out.println( "The head element is: " + de_que.element());
}
}
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Output:
ArrayDeque: [Welcome, To, Geeks, 4, Geeks]
The head element is: Welcome
Program 2:
import java.util.*;
public class ArrayDequeDemo {
public static void main(String args[])
{
ArrayDeque<Integer> de_que = new ArrayDeque<Integer>();
de_que.add( 10 );
de_que.add( 15 );
de_que.add( 30 );
de_que.add( 20 );
de_que.add( 5 );
System.out.println( "ArrayDeque: " + de_que);
System.out.println( "The head element is: " + de_que.element());
}
}
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Output:
ArrayDeque: [10, 15, 30, 20, 5]
The head element is: 10
Last Updated :
10 Dec, 2018
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