Data Type Java Tutorial

Write the number as a decimal value followed by an E, or an e.
Floating-point literals are of type double by default.
To specify a value of type float, you append an f, or an F.

public class MainClass{
  public static void main(String[] arg){
     double f1 = 1.496E8;
     double f2 = 9.0E-28; 
  
     System.out.println(f1);
     System.out.println(f2);
     System.out.println(f2 + f1);
  }
}
1.496E8
9.0E-28
1.496E8