A good answer might be:

The complete program is below. Notice how the pieces fit together.

Complete Program

Here is the complete program. Notice how the pieces fit together. The counting loop is nested in the body of the result-controlled loop.

class  MillionDollarInterestRate
{

  public static void main( String[] args ) 
  {
    double initialAmount = 1000.00 ;
    double dollars = 0.0;
    double rate;
    int    year;

    rate = -0.001;   // This is about to be increased to zero
 
    while ( dollars < 1000000 )
    {
       // change to the next rate
       rate = rate + 0.001;

       // compute the dollars after 40 years at the current rate
       year =  1 ;     
       dollars = initialAmount;     
       while (  year <= 40 )
       {     
         dollars = dollars + dollars*rate  ; // add another year's interest     
         dollars = dollars + 1000 ;          // add in this year's contribution
         year    =  year + 1 ;
       }

    }

    System.out.println("After 40 years at " + rate*100 
      + " percent interest you will have " + dollars + " dollars" );
  }

}


QUESTION 10:

Why is this statement from the program important:


dollars = initialAmount;