Computer Applications
Define a class Interest having the following description:
Class name : Interest
Data Members | Purpose |
---|---|
int p | to store principal (sum) |
int r | to store rate |
int t | to store time |
double interest | to store the interest to be paid |
double amt | to store the amount to be paid |
Member functions | Purpose |
---|---|
void input() | Stores the principal, rate, time |
void cal() | Calculates the interest and amount to be paid |
void display() | Displays the principal, interest and amount to be paid |
Write a program to compute the interest according to the given conditions and display the output.
Time | Rate of interest |
---|---|
For 1 year | 6.5% |
For 2 years | 7.5% |
For 3 years | 8.5% |
For 4 years or more | 9.5% |
(Note: Time to be taken only in whole years)
Answer
import java.util.Scanner;
public class Interest
{
private int p;
private float r;
private int t;
private double interest;
private double amt;
public void input() {
Scanner in = new Scanner(System.in);
System.out.print("Enter principal: ");
p = in.nextInt();
System.out.print("Enter time: ");
t = in.nextInt();
}
public void cal() {
if (t == 1)
r = 6.5f;
else if (t == 2)
r = 7.5f;
else if (t == 3)
r = 8.5f;
else
r = 9.5f;
interest = (p * r * t) / 100.0;
amt = p + interest;
}
public void display() {
System.out.println("Principal: " + p);
System.out.println("Interest: " + interest);
System.out.println("Amount Payable: " + amt);
}
public static void main(String args[]) {
Interest obj = new Interest();
obj.input();
obj.cal();
obj.display();
}
}
Variable Description Table
Program Explanation
Output
Related Questions
Define a class Telephone having the following description:
Class name : Telephone
Data Members Purpose int prv, pre to store the previous and present meter readings int call to store the calls made (i.e. pre - prv) String name to store name of the consumer double amt to store the amount double total to store the total amount to be paid Member functions Purpose void input() Stores the previous reading, present reading and name of the consumer void cal() Calculates the amount and total amount to be paid void display() Displays the name of the consumer, calls made, amount and total amount to be paid Write a program to compute the monthly bill to be paid according to the given conditions and display the output as per the given format.
Calls made Rate Up to 100 calls No charge For the next 100 calls 90 paise per call For the next 200 calls 80 paise per call More than 400 calls 70 paise per call However, every consumer has to pay ₹180 per month as monthly rent for availing the service.
Output:
Name of the customer Calls made Amount to be paid .................... .......... ................. .................... .......... .................
Bank charges interest for the vehicle loan as given below:
Number of years Rate of interest Up to 5 years 15% More than 5 and up to 10 years 12% Above 10 years 10% Write a program to model a class with the specifications given below:
Class name: Loan
Data Members Purpose int time Time for which loan is sanctioned double principal Amount sanctioned double rate Rate of interest double interest To store the interest double amt Amount to pay after given time Member Methods Purpose void getdata() To accept principal and time void calculate() To find interest and amount.
Interest = (Principal*Rate*Time)/100
Amount = Principal + Interestvoid display() To display interest and amount Define a class Discount having the following description:
Class name : Discount
Data Members Purpose int cost to store the price of an article String name to store the customer's name double dc to store the discount double amt to store the amount to be paid Member methods Purpose void input() Stores the cost of the article and name of the customer void cal() Calculates the discount and amount to be paid void display() Displays the name of the customer, cost, discount and amount to be paid Write a program to compute the discount according to the given conditions and display the output as per the given format.
List Price Rate of discount Up to ₹5,000 No discount From ₹5,001 to ₹10,000 10% on the list price From ₹10,001 to ₹15,000 15% on the list price Above ₹15,000 20% on the list price Output:
Name of the customer Discount Amount to be paid .................... ........ ................. .................... ........ .................
Define a class Library having the following description:
Class name : Library
Data Members Purpose String name to store name of the book int price to store the printed price of the book int day to store the number of days for which fine is to be paid double fine to store the fine to be paid Member functions Purpose void input() To accept the name of the book and printed price of the book void cal() Calculates the fine to be paid void display() Displays the name of the book and fine to be paid Write a program to compute the fine according to the given conditions and display the fine to be paid.
Days Fine First seven days 25 paise per day Eight to fifteen days 40 paise per day Sixteen to thirty days 60 paise per day More than thirty days 80 paise per day