class
BankAcct
{
private double bal;
BankAcct(double b)
{
bal=b;
}
void start(double r)
{
Interest in=new Interest(r);
in.calculateInterest( );
}
private class Interest
{
private double rate;
Interest(double r)
{
rate=r;
}
void calculateInterest( )
{
System.out.println("Balance
= "+bal);
double
interest=bal*rate/100;
System.out.println("interest
= "+interest);
bal+=interest;
System.out.println("New
Balance = "+bal);
}
}
}
class
InnerDemo
{
public static void main(String args[])
{
BankAcct account=new
BankAcct(20000);
account.start(7.5);
}
}
D:\prr\Core
java>javac InnerDemo.java
D:\prr\Core
java>java InnerDemo
Balance
= 20000.0
interest
= 1500.0
New
Balance = 21500.0
