Programming in Java Lab Assignment 6 (Implmentation of Inheritance

Part 1: Implementation of Fixed and Growable Stack using Interface_STK

Interface_stk (Interface)

• push(int element): Adds an element to the stack.
• pop(): Removes and returns the top element from the stack.
• displayStack(): Displays all elements in the stack.
• overflow(): Checks if the stack is full.
• underflow(): Checks if the stack is empty.

Fixed_stk (Class)

• Implements the Interface_stk.
• Represents a fixed-size stack.
• Uses an array to store stack elements.
• Operations: push, pop, displayStack.
• Checks for stack overflow and underflow conditions.

Growable_stk (Class)

• Implements the Interface_stk.
• Represents a growable stack.
• Uses an ArrayList to store stack elements.
• Operations: push, pop, displayStack.
• Does not check for stack overflow, but handles underflow condition.

main (Class)

• Demonstrates the usage of Fixed_stk and Growable_stk.
• Creates instances of both types of stacks.
• Pushes elements into each stack, pops elements, and displays the stacks.

Part 2: Student and Result Calculation

Student_part2 (Class)

• Represents a student with name, roll number, and marks for two subjects.
• Provides getters and setters for each field.

Exam (Interface)

• Percent_cal(): Calculates the percentage based on marks.

Result_part2 (Class)

• Extends Student_part2 and implements Exam.
• Calculates the percentage using Percent_cal().
• Displays the result including percentage, name, roll number, and marks.

main_2 (Class)

• Demonstrates the usage of Result_part2.
• Creates an instance of Result_part2, passing student details and marks.
• Displays the result including the calculated percentage.