How do I reinitalize index [top] of both of these restricted structures to 0?

[dseals22]

Hello Everyone,

I have question: how do I reinitalize index [top] of both of these restricted structures to 0?

Here is the Stack Push Algorithm:

       if (top == 0) 
          return false; // ** overflow error 
       else 
       { 
              top = top + 1; data[top] = newNode.deepCopy(); 
              return true;  // push operation successful 
       }
 
 

Here is the stack Pop algorithm:

if(top == -1) return null;  // ** underflow error ** else {  topLocation = top; top = top - 1; return data[topLocation]; // returns a shallow copy } 

[chaarmann]

just setting top=0 ? No? So describe what you want in more detail. I see only array "data" aut not array "index" in your code.
And data = new int[data.length] will just clear your array. (or whatever type you have in your array, I just assumed "int")