Truncating Decimal Numbers

In the below program the output is coming with decimal numbers. I want to Truncate the decimal numbers in the output.  How to do that?




/* WRITE AND TEST A JAVA PROGRAM TO CONVERT A GIVEN TEMPERATURE IN FAHRENHEIT
   TO CELCIUS USING THE FOLLOWING CONVERSION FORMULA: F-32/1.8 AND DISPLAY
   THE VALUES IS TABULAR FORM */

 /* TEMPERATURE CONVERSION */
 import java.io.DataInputStream;
 class tempcon
 {
 public static void main(String args[])
 {
 int a;
 float f=0.0f;
 double c=0.0;
 DataInputStream in=new DataInputStream(System.in);
 try
 {
 System.out.println("%*%*%*%*%*%*%OUTPUT%*%*%*%*%*%*%*%*");
 System.out.println("Enter the value of a");
 a=Integer.parseInt(in.readLine());
 System.out.println(+a);
 System.out.println("Enter the temperature in fahrenheit");
 f=Float.valueOf(in.readLine()).floatValue();
 System.out.println(f);
 System.out.println("fahr\t celcius");
 System.out.println("*!*! \t *!*!*!*!*!*!*!*!");
 for(int i=1;i<=a;i++)
 {
 c=(f-32)/1.8;
 System.out.println("\n" +f+ "\t" +c);
 f=f+1;
 }
 }
 catch(Exception e)
 {
 }
 }
 }



%*%*%*%*%*%*%OUTPUT%*%*%*%*%*%*%*%*
Enter the value of a
5
Enter the temperature in fahrenheit
48.0
fahr       celcius
*!*!        *!*!*!*!*!*!*!*!

48.0      8.88888888888889

49.0      9.444444444444445

50.0      10.0

51.0      10.555555555555555

52.0      11.11111111111111
%*%*%*%*%*%*%*%*%*%*%*%*%*%*%*%*%*%*