Java Language

//the source code for DozenStackAbstract.java is provided for your reference

public abstract class DozenStackAbstract{

private Character[] c;

private int total;

public DozenStackAbstract(){

c=new Character[12];

total=0;

}

public abstract void push(char c);

public boolean isEmpty(){

return total==0;

}

public boolean isFull(){

return total==12;

}

public void pop(){

if(total>0)

Problem 2 (20 points)

A dozen stack is a stack with a fixed size of 12 elements. If a dozen stack is full, then the element that has been on the stack, the longest, is removed to make room for a new new element.

For this problem, you are required to design a class named DozenStack.java, which extends DozenStackAbstract.java, and implements push method to captures this specification of a dozen stack