1.OOPS CONCEPT WITH REAL TIME EXAMPLES 2.HOW

complete al the assignments with example related to real world

ASSIGNMENT 2

1 Write a Java program that prints the following pattern using loops 2 Create a Java class with overloaded methods to calculate the area of different shapes. Requirements: • Implement methods to calculate the area of: o A rectangle (length and width) o A circle (radius) o A triangle (base and height) • Each method should return the calculated area. 3 Write a Java program that uses an array to store and manage grades for 5 students. Requirements: • Prompt the user to enter the grades for each student. • Calculate and display: o The average grade. o The highest and lowest grades. o A message indicating whether each student passed (>= 50) or failed. 4 Extend the Book class to include constructors. Requirements: • Create a default constructor that initializes the attributes to default values. • Create a parameterized constructor to set the attributes when a Book object is created. • Demonstrate both constructors in the main method. 5 Define a class Student with attributes name and rollNumber. Requirements: • Include methods to set and get these attributes. • Create a method displayInfo() that prints the student’s details. • In the main method, create multiple Student objects and call the displayInfo() method for each. 6 Create a class Rectangle with attributes length and width. Requirements: • Implement a constructor that uses the this reference to set the attributes. • Create a method calculateArea() that calculates the area using the this reference. • In the main method, create a object and display its area.