Rewrite the following program using the DecimalFormat class so that your output

Question

Rewrite the following program using the DecimalFormat class so that your output looks like that below. Once again, the example is not calculated as 3/10ths of a percent.

Welcome to NIU Investments!

Please enter the amount you would like to invest today: 34543.25

Total Investment: $34,543.25

Service Charge: $22.33

   -------------

Total Amount Due: $34,565.58

Thank you for your investment!

Program:

package org.students;

import java.util.Scanner;

public class NIUInvestments {

   //Declaring constant
   public static final double SCHARGE=0.0006464;
   public static void main(String[] args) {
      
       //Declaring variables
       double total_investment,service_charge,total_amount_due;
      
       //Scanner class object is used read the inputs entered by the user
       Scanner sc=new Scanner(System.in);
       System.out.println("Welcome to NIU Investments!");
      
       //This loop continues to execute until the suer enters a valid number
       while(true)
       {
       //getting the total investment entered by the user.  
       System.out.print("Please enter the amount you would like to invest today:");
       total_investment=sc.nextDouble();
      
       /*Checking the total investment is with the range
       * If not,Display the error message end prompt to enter again
       */
       if(total_investment<0 || total_investment>99999999.99)
       {
       System.out.println("::Invalid Number.Total investment must be greater than 0 and less than 99999999.99 ::");
       continue;
       }
       else
           break;
       }  
       //Calculating the service charge
       service_charge=total_investment*SCHARGE;
      
       //calculating the total amount due
       total_amount_due=total_investment+service_charge;
      
       //Displaying the total investment
       System.out.printf(" Total Investment (in dollars): %.2f ",total_investment);
      
       //Displaying the service charge
       System.out.printf(" Service Charge (in dollars): %.2f ",service_charge);
       System.out.println(" -----------");
      
       //Displaying the total amount due
       System.out.printf("Total Amount Due (in dollars):%.2f ",total_amount_due);
       System.out.println(" Thank you for your investment!");
          

   }

}

____________________________________________

Output:

Welcome to NIU Investments!
Please enter the amount you would like to invest today:34543.25

Total Investment (in dollars):   34543.25
Service Charge (in dollars):   22.33
       -----------
Total Amount Due (in dollars):34565.58

Thank you for your investment!

________________________Thank You

Explanation / Answer

Here 3% percent means 3/100=0.03. where as 3/10th percent means 3/10X100 %=30%..But according to the problem the service charge 22.33 is not 3/10th% of 34543.25 Should I have to Modify.Where as 3/10th% of 34543.25 is 10362.975.

Could you please clarify .So that the output will be accurate.

_______________________

NIUInvestments.java

import java.text.DecimalFormat;
import java.util.Scanner;

public class NIUInvestments {

   //Declaring constant
   public static final double SCHARGE=0.0006464;
   public static void main(String[] args) {
      
       //Declaring variables
       double total_investment,service_charge,total_amount_due;
       DecimalFormat df=new DecimalFormat("#.##");
       //Scanner class object is used read the inputs entered by the user
       Scanner sc=new Scanner(System.in);
       System.out.println("Welcome to NIU Investments!");
      
       //This loop continues to execute until the suer enters a valid number
       while(true)
       {
       //getting the total investment entered by the user.  
       System.out.print("Please enter the amount you would like to invest today:");
       total_investment=sc.nextDouble();
      
       /*Checking the total investment is with the range
       * If not,Display the error message end prompt to enter again
       */
       if(total_investment<0 || total_investment>99999999.99)
       {
       System.out.println("::Invalid Number.Total investment must be greater than 0 and less than 99999999.99 ::");
       continue;
       }
       else
           break;
       }  
       //Calculating the service charge
       service_charge=total_investment*SCHARGE;
      
       //calculating the total amount due
       total_amount_due=total_investment+service_charge;
      
       //Displaying the total investment
       System.out.println("Total Investment :$"+df.format(total_investment));
      
       //Displaying the service charge
       System.out.println(" Service Charge :$ "+df.format(service_charge));
       System.out.println(" -----------");
      
       //Displaying the total amount due
       System.out.println("Total Amount Due:$"+df.format(total_amount_due));
       System.out.println(" Thank you for your investment!");
          

   }

}

______________________________

Output:

Welcome to NIU Investments!
Please enter the amount you would like to invest today:34543.25
Total Investment :$34543.25
Service Charge :$ 22.33
       -----------
Total Amount Due:$34565.58

Thank you for your investment!

__________________________________

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