If you want to control the display of zeroes, you can use this java.text.DecimalFormat class.
====================
import java.text.DecimalFormat;
import java.util.Scanner;
class Class3 {
static void formattingNumber(String pattern, double num){
DecimalFormat obj = new DecimalFormat(pattern);
String myFormat = obj.format(num);
System.out.println("formatted: " + myFormat);
}
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.print("Enter an amount: ");
double input3 = scan.nextDouble();
formattingNumber("$###, ###.##", input3);
}
}
=====================
Result:
Enter an amount: 100.369formatted: $100.37
Note: The pound sign(#) represents a number or digit. The comma(,) represents a grouping separator. The period(.) represents the decimal separator. There are other patterns like leading and trailing zeroes.
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