Guys I have a task in java programming I need your help

Question

Q 1. Write java code for a class called StackOfPalindromes, which is used to check an array of words, determine the palindromes among these words, and save the palindromes in a stack. The class contains:
1-A String array named words for the words to be checked.
2-An integer data field named size for the stack’s size.
3-An integer constant DEFAULT_CAPACITY for the stack’s default capacity, which is 5.
4A no-arg constructor that invokes an arg-constructor, which creates a stack with the specified capacity.
5A method named push() that takes a word, filters it from any non-alphabetic characters (i.e. remove numbers and other symbols), checks if it is a palindrome, and pushes it to the stack only if its palindrome.
6A method named pop() that returns the word on top of the stack and removes it from the stack.
Q 2. Draw the UML diagram for the class StackOfPalindrmes.
Q 3. Write a test class: TestStackOfPalindromes that:
Create a StackOfPalindromes object using the class’s no-arg constructor.
Use this object to push

Answer 1

Hi! What kind of help you need?

Answer 2

I try to do the code and I most finished but when I tried it doesn't work there is some mistakes , I will send the code here and I hope you help me .

Answer 3

Please, for better help, put this code on codes playground ("codes" section { }), make it public and paste link here

Answer 4

Ok I got it

Answer 5

https://code.sololearn.com/cnI2uTIZRJE6/?ref=app

Answer 6

/*
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package pakcageofhw;
public class StackOfPalindromes {
String [] words;
int size;
public static final int DEFAULT_CAPACITY = 5;
public StackOfPalindromes(){
this(DEFAULT_CAPACITY);
}
public StackOfPalindromes(int capacity){
words = new String[capacity];
}
public void push(String value){
StringBuilder sb = new StringBuilder();
for (int i = 0; i < value.length(); i++) {
if (Character.isLetterOrDigit(value.charAt(i))) {
sb.append(value.charAt(i));
}
}
words[size] = value;
}
public String pop(){
if(size==0)
return "Stack is empty";
return words[--size];
}
}

Answer 7

This is my class and when I invoke it from main method it doesn't work