我正在练习一些实现不同数据结构的代码。对于这个例子,我试图实现一个简单的堆栈数据结构。到目前为止,它按预期工作,但是在尝试显示我的堆栈时我不断收到十六进制字符。谁能帮我弄清楚为什么会这样?
此外,我正在努力更好地正确构建我的代码,任何已经参与该行业的人都可以对我迄今为止的编码提出一些建设性的批评。谢谢。
#include <iostream>
using namespace std;
// stack_MAX == maximum height of stack
const int stack_MAX = 10;
class stack{
public:
stack(){
//Constructor initializes top of stack
top = -1;
}
bool isFull(int top){
//isFull() will check to make sure stack is not full
//Will return TRUE if stack is FULL, and FALSE if
//stack is NOT FULL
if(top == stack_MAX - 1)
return true;
else
return false;
}
bool isEmpty(int top){
//isEmpty() will check to make sure stack is not empty
//Will return TRUE if stack is EMPTY, and FALSE if
//stack is NOT EMPTY
if(top == -1)
return true;
else
return false;
}
void push(int x){
//push() will push new element on top of stack
if(isFull(top)){
cout << "Sorry, but the stack is full!" << endl;
exit(1);
}
else{
top++;
x = stk[top];
}
}
void pop(){
//pop() will pop the top element from the stack
if(isEmpty(top)){
cout << "Sorry, but the stack is empty!" << endl;
exit(1);
}
else{
cout << stk[top] << " is being popped from stack!" << endl;
top--;
}
}
void display_stack(){
//diplay_stack() will show all elements currently in the stack
int temp; //will temporarily hold position of stack
temp = top;
while(!isEmpty(temp)){
cout << stk[temp] << endl;
temp--;
}
}
private:
int top;
int stk[stack_MAX];
};
int menu(){
int choice;
cout << "Welcome to my stack!" << endl;
cout << "What would you like to do? (select corresponding #)" << endl << endl;
cout << "1. Push" << endl;
cout << "2. Pop" << endl;
cout << "3. Display" << endl;
cout << "4. Quit" << endl;
cin >> choice;
return choice;
}
int main()
{
int selection, x;
stack myStack;
selection = menu();
while(selection != 4)
{
switch(selection){
case 1:
cout << "please enter number to be pushed: ";
cin >> x;
myStack.push(x);
selection = menu();
break;
case 2:
myStack.pop();
selection = menu();
break;
case 3:
myStack.display_stack();
selection = menu();
break;
default:
cout << "Oops that's not a selection, try again" << endl;
selection = menu();
break;
}
}
cout << "Thank you for stopping by and using my stack!" << endl;
system("pause");
return 0;
}