Why OOP?

• What are the problems?

  • Not generic
    • What happens if more stacks are needed?
    • What happens if a stack of a different type is needed?
  • Fixed size
  • No effective information hiding mechanism

double stack[100];

int top;

void init(){

top = -1;

}

void push(int val){

if (!isFull()){

stack[++top] = val;

else error(“stack is full”);

}

...

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