Create a stack with three integers and then use .toarray to copy it to an array.

import java.util.*;

import java.lang.*;

import java.io.*;

class Codechef

{

public static void main (String[] args)

{

    Stack<Integer> mat=new Stack<Integer>();

    mat.add(1);

    mat.add(3);

    mat.add(6);

    System.out.println(mat);

    Object [] a=mat.toArray();

    for(int i=0;i<a.length;i++)

    System.out.println(a[i]);

}

}

Explanation:

An integer type stack st is created;

1,3 and 6 are added to the stack.

printing the contents of the stack.

array a is created form the stack using toArray().

Then printing the array.

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