Rounding Doubles

Question

This is working the way that I want, but my question is, how can I round the results to be within 2 decimal like with change?

package practiceClasses;
import java.util.Scanner;

public class InterestCalculator {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);

double startAmount,addedInterest,originalInterest;
int month = 0;

System.out.println("Please input the interest amount: ");
originalInterest = input.nextDouble();
System.out.println("Interest is at " + " " + originalInterest);
System.out.println("Please input the orginal deposit: ");
startAmount = input.nextDouble();
System.out.println("Month: " + "In Savings: " + "Added Interest: ");
while(month < 12) {
addedInterest = startAmount * originalInterest;
startAmount = startAmount + addedInterest;
month++;
switch(month) {
case 1:
System.out.println("January " + startAmount + " " + addedInterest);
break;
case 2:
System.out.println("Febuary " + startAmount + " " + addedInterest);
break;
case 3:
System.out.println("March " + startAmount + " " + addedInterest);
break;
case 4:
System.out.println("April " + startAmount + " " + addedInterest);
break;
case 5:
System.out.println("May " + startAmount + " " + addedInterest);
break;
case 6:
System.out.println("June " + startAmount + " " + addedInterest);
break;
case 7:
System.out.println("July " + startAmount + " " + addedInterest);
break;
case 8:
System.out.println("August " + startAmount + " " + addedInterest);
break;
case 9:
System.out.println("September " + startAmount + " " + addedInterest);
break;
case 10:
System.out.println("October " + startAmount + " " + addedInterest);
break;
case 11:
System.out.println("November " + startAmount + " " + addedInterest);
break;
case 12:
System.out.println("December " + startAmount + " " + addedInterest);
break;

}

Answer 1

@Martin Taylor That doesn't answer my question, I want to know how to round a double to the nearest int

Answer 2

formating can also do rounding