Stack toArray() method in Java with Example
Last Updated :
24 Dec, 2018
The toArray() method of Stack class in Java is used to form an array of the same elements as that of the Stack. Basically, it copies all the element from a Stack to a new array.
Syntax:
Object[] arr = Stack.toArray()
Parameters: The method does not take any parameters.
Return Value: The method returns an array containing the elements similar to the Stack.
Below programs illustrate the Stack.toArray() method:
Program 1:
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( "For" );
stack.add( "Geeks" );
System.out.println( "The Stack: " + stack);
Object[] arr = stack.toArray();
System.out.println( "The array is:" );
for ( int j = 0 ; j < arr.length; j++)
System.out.println(arr[j]);
}
}
|
Output:
The Stack: [Welcome, To, Geeks, For, Geeks]
The array is:
Welcome
To
Geeks
For
Geeks
Program 2:
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 );
stack.add( 25 );
System.out.println( "The Stack: " + stack);
Object[] arr = stack.toArray();
System.out.println( "The array is:" );
for ( int j = 0 ; j < arr.length; j++)
System.out.println(arr[j]);
}
}
|
Output:
The Stack: [10, 15, 30, 20, 5, 25]
The array is:
10
15
30
20
5
25
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