- Java Question - I only need help using toString and make StackArray implement StackInterface. My code is below.

public interface StackInterface

{

public void push(T newEntry);

public T peek();

public T pop();

public boolean isEmpty();

public void clear();

}

import java.util.*;

public class TheStack implements StackInterface

{

private T stack[];

private int top;

private final static int DEFAULT_SIZE = 10;

public TheStack ()

{

this(DEFAULT_SIZE);

}

public TheStack (int initSize)

{

stack = (T[]) new Object [initSize];

top = -1;

}

public T peek()

{

if (top == -1)

return null;

return stack[top];

}

public boolean isEmpty()

{

return (top == -1);

}

public T pop()

{

if (top == -1)

return null;

T item = stack[top];

stack[top--] = null;

if(top > 0 && top == stack.length / 4)

resize (stack.length/2);

return item;

}

public void push(T item)

{

if (top == stack.length - 1)

resize(2 * stack.length);

stack[++top] = item;

}

public int size()

{

return (top + 1);

}

private void resize (int newSize)

{

T t[] = (T[]) new Object[newSize];

for (int i = 0; i

t[i] = stack[i];

stack = t;

}

@Override

public void clear() {

// TODO Auto-generated method stub

top = -1;

}

}

public class MyClass

{

public static void main(String args[]){

StackInterface s = new TheStack();

s.push(37);

s.push(42);

s.push(40);

s.push(56);

s.push(93);

s.push(70);

System.out.println("Top element is " + s.peek());

System.out.println("Popped element is " + s.pop());

System.out.println("Popped element is " + s.pop());

}

}

Implement the StackArray and create a stack of integer values and a stack of strings. Test push, pop and pick. Also, include a toString that returns a string containing the items in the stack. Use the method toString to print the stack values each time you push or pop. Make your StackArray implement the Stacklnterface as shown below