The document seeks clarification on the StackInterface in Java, specifically its methods. It outlines five key methods: push, pop, peek, isempty, and clear, detailing their functionalities and exception handling. The author is struggling with implementing these methods and wants to enhance their understanding of the interface.

1. Can someone help me get a better understanding of StackInterface in java?
I also am having trouble with some of these methods i need to write.
public interface StackInterface<T> {
/**
* Add element to top of stack.
* @param newEntry item to add to stack.
*/
public void push(T newEntry);
/**
* Remove and return top element from stack.
* @return top element.
* @throws EmptyStackException if the stack is empty
*/
public T pop();
/**
* Return top element from stack without modifying stack.
* @return Element on top of stack.
* @throws EmptyStackException if the stack is empty
*/
public T peek();
/**
* Whether stack is empty.
* @return True if stack is empty, false otherwise.

2. */
public boolean isEmpty();
/**
* Remove all elements from stack.
*/
public void clear();
}