Here is a Python program that implements the stack operations as described: ```python class Stack: def __init__(self): self.stack = [] self.max_size = 100 def push(self, char): if len(self.stack) 0: popped_char = self.stack.pop() print(f"Popped: {popped_char}") else: print("Stack is empty. Nothing to pop.") def display(self): if len(self.stack) 0: print("Stack elements: ", end="") for i in reversed(self.stack): print(i, end=" ") print() else: print("Stack is empty.") def exit(self): print("Exiting the program.") exit(0) stack = Stack() while True: choice = int(input()) if choice == 1: char = input() stack.push(char) elif choice == 2: stack.pop() elif choice == 3: stack.display() elif choice == 4: stack.exit() else: print("Invalid choice") ``` This program creates a stack object and performs operations based on the user's input. If the user enters 1, it pushes the next input character onto the stack. If the user enters 2, it pops a character from the stack. If the user enters 3, it displays the current stack elements. If the user enters 4, it exits the program. If the user enters any other number, it prints "Invalid choice".

Question

Here is a Python program that implements the stack operations as described:

```python
class Stack:
    def __init__(self):
        self.stack = []
        self.max_size = 100

def push(self, char):
        if len(self.stack) < self.max_size:
            self.stack.append(char)
            print(f"Pushed: {char}")
        else:
            print("Stack is full. Cannot push.")

def pop(self):
        if len(self.stack) > 0:
            popped_char = self.stack.pop()
            print(f"Popped: {popped_char}")
        else:
            print("Stack is empty. Nothing to pop.")

def display(self):
        if len(self.stack) > 0:
            print("Stack elements: ", end="")
            for i in reversed(self.stack):
                print(i, end=" ")
            print()
        else:
            print("Stack is empty.")

def exit(self):
        print("Exiting the program.")
        exit(0)

stack = Stack()

while True:
    choice = int(input())
    if choice == 1:
        char = input()
        stack.push(char)
    elif choice == 2:
        stack.pop()
    elif choice == 3:
        stack.display()
    elif choice == 4:
        stack.exit()
    else:
        print("Invalid choice")
```

This program creates a stack object and performs operations based on the user's input. If the user enters 1, it pushes the next input character onto the stack. If the user enters 2, it pops a character from the stack. If the user enters 3, it displays the current stack elements. If the user enters 4, it exits the program. If the user enters any other number, it prints "Invalid choice".

Knowee AI · Accepted Answer

Here is a Python program that implements the stack operations as described:

```python
class Stack:
    def __init__(self):
        self.stack = []
        self.max_size = 100

def push(self, char):
        if len(self.stack) < self.max_size:
            self.stack.append(char)
            print(f"Pushed: {char}")
        else:
            print("Stack is full. Cannot push.")

def pop(self):
        if len(self.stack) > 0:
            popped_char = self.stack.pop()
            print(f"Popped: {popped_char}")
        else:
            print("Stack is empty. Nothing to pop.")

def display(self):
        if len(self.stack) > 0:
            print("Stack elements: ", end="")
            for i in reversed(self.stack):
                print(i, end=" ")
            print()
        else:
            print("Stack is empty.")

def exit(self):
        print("Exiting the program.")
        exit(0)

stack = Stack()

while True:
    choice = int(input())
    if choice == 1:
        char = input()
        stack.push(char)
    elif choice == 2:
        stack.pop()
    elif choice == 3:
        stack.display()
    elif choice == 4:
        stack.exit()
    else:
        print("Invalid choice")
```

This program creates a stack object and performs operations based on the user's input. If the user enters 1, it pushes the next input character onto the stack. If the user enters 2, it pops a character from the stack. If the user enters 3, it displays the current stack elements. If the user enters 4, it exits the program. If the user enters any other number, it prints "Invalid choice".

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