Computer Applications
Write a program to input the sum. Calculate and display the compound interest in 3 years, when the rates for the successive years are r1%, r2% and r3% respectively.
Hint: [A = P * (1 + (r1 / 100)) * (1 + (r2 / 100)) * (1 + (r3 / 100)) and CI = A - P ]
Java
Java Math Lib Methods
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Answer
import java.util.*;
public class KboatCompoundInterest
{
public static void main(String args[])
{
Scanner in = new Scanner(System.in);
System.out.print("Enter principal: ");
double p = in.nextDouble();
System.out.print("Enter interest rate for 1st year: ");
float r1 = in.nextFloat();
System.out.print("Enter interest rate for 2nd year: ");
float r2 = in.nextFloat();
System.out.print("Enter interest rate for 3rd year: ");
float r3 = in.nextFloat();
double amt = p * (1 + (r1 / 100))
* (1 + (r2 / 100))
* (1 + (r3 / 100));
double ci = amt - p;
System.out.println("Amount after 3 years: Rs. " + amt);
System.out.println("Compound Interest: Rs. " + ci);
}
}
Variable Description Table
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