Question: Using the following code snip: import java.util.ArrayList; class Stack{ private ArrayList string_stack; Stack(){ string_stack = new ArrayList (); public void push(String s_in){ ......... } public

Using the following code snip:

import java.util.ArrayList; class Stack{ private ArrayList string_stack; Stack(){ string_stack = new ArrayList (); public void push(String s_in){ ......... } public void pop(){ .......... } public void isEmpty(){ ........... } public int getSize(){ ........... } } Write a definition for the following four functions: public void push(string s_in){ } public void pop(){ } public boolean isEmpty(){ } public int getSize(){ }

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