I have a stack implemented with an array (20 cells) of string objects. There is

Question

I have a stack implemented with an array (20 cells) of string objects. There is an integer variable called Top which holds the index of first open cell on the stack (the top) (example shown below). Write out the pseudocode for a

I have a stack implemented with an array (20 cells) of string objects. There is an integer variable called Top which holds the index of first open cell on the stack (the top) (example shown below). Write out the pseudocode for a "pop" method. Create an "is_empty" method which returns a Boolean value (true for empty, false for not empty), then call it from your pop method.

Explanation / Answer

Pop()

{

If(isempty(stack[top]))

System.out.println("");

Else{ system.out.println(stack[top]);

Top--;

}

}

Boolean is empty(int top)

{

If(stack[top]!=null)

Return false;

Else return true;}

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