public class toStringTest {
  public static void main(String[] args) {
    int a=25; float b=25.25f; double c=20.5d;
    System.out.printf("a = %d\n", a);
    String a1 = Integer.toString(a);
    System.out.printf("a1 = %s\n", a1);

    System.out.printf("b = %f\n", b);
    String b1 = Float.toString(b);
    System.out.printf("b1 = %s\n", b1);

    System.out.printf("c = %f\n", c);
    String c1 = Double.toString(c);
    System.out.printf("c1 = %s\n", c1);
   }
}