INTRODUCTION TO OBJECTS AND INPUT/OUTPUT - Java Programming: From Problem Analysis to Program Design - page 132

EXAMPLE 3-4

//Example: Fixed and scientific format

public class ScientificVsFixed
{

public static void main(String[] args)
{

double hours = 35.45;
double rate = 15.00;
double tolerance = 0.01000;

System.out.println("Fixed decimal notation:");
System.out.printf("hours = %.2f, rate = %.2f, pay = %.2f,"
+ " tolerance = %.2f%n%n",
hours, rate, hours * rate, tolerance);

System.out.println("Scientific notation:");
System.out.printf("hours = %e, rate = %e, pay = %e,%n"
+ "tolerance = %e%n",
hours, rate, hours * rate, tolerance);

}

}
Sample Run:
Fixed decimal notation:
hours = 35.45, rate = 15.00, pay = 531.75, tolerance = 0.01

Scientific notation:
hours = 3.545000e+01, rate = 1.500000e+01, pay = 5.317500e+02,
tolerance = 1.000000e-02
The sample run shows how the value of hours , rate , pay , and tolerance are printed
in fixed decimal format and in scientific notation. First the values are printed in fixed
decimal format using the conversion f and then the values are printed in scientific
notation using the conversion e .

EXAMPLE 3-5

//Program to illustrate how to format the outputting of
//decimal numbers.

public class FormattingDecimalNumNew //Line 1

{ //Line 2

static final double PI = 3.14159265; //Line 3

public static void main(String[] args) //Line 4

{ //Line 5

double radius = 12.67; //Line 6

double height = 12.00; //Line 7