Question

Define a class with the following specifications:

Class name: Bank

Member variables:

double p - stores the principal amount

double n - stores the time period in years

double r - stores the rate of interest

double a - stores the amount

member methods:

void accept () - input values for p and n using Scanner class methods only.

void calculate () - calculate the amount based on the following conditions:

Time in (Year)	Rate %
Upto `1/2`	9
>`1/2` to 1 year	10
> 1 to 3 year	11
> 3year	12

`a = p (1+r/100)^n`

void display () - display the details in the given format.

Principal	Time	Rate	Amount
xxx	xxx	xxx	xxx

Write the main method to create an object and call the above methods.

Answer 1

import java.util.*;
class bank
{
   double p,n,r,a;
   Scanner ob=newScanner(System.in);
   void accept()
   {
     System.out.println("Enter principal");
     p=ob.nextDouble();
     System.out.println("Enter number of years");
     n=ob.nextDouble();
   }
   void calculate()
   {
     if(n<=0.5)
     r=9;
     else
     if(n>0.5&&n>=1)
     r=10
     else
     if(r>1&&n<=3)
     r=11;
     a=p*Math.pow(1+r/100,n);
  }
  void display()
  {
     System.out.println("Principal"+"\t"+"Rate"+"\t"+"Time"+"\t"+"Amount");
     System.out.println(p+"\t"+r+"\t"+n+"\t"+a);
  }
   void main()
  {
     bank b=new bank();
     b.accept();
     b.calculate();
     b.display();
}  }