The boolean method to check for an empty stack can be written as:
Consider a class that uses the following variables to implement an array-based stack:
String [] s = new String[100];
int top = 0;
A) return top;
B)
if (top == 0)
return true;
else
return false;
C)
if (s == null)
return true;
else
return false;
D)
if (s.length == 0)
return true;
else
return false;
B)
if (top == 0)
return true;
else
return false;
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