Question

In Java I need some hint to declare floating point variable that in all virtual machine run uniquely and show number unique float number in all machine ( mobile machine and PC )

Answer 1

You can use strictfp keyword for class declaration or variables :

public strictfp class MyFPclass { 
    // ... contents of class here ...
}

The Java package java.lang.Math class contains these strictfp methods:

 public static strictfp double abs(double);
 public static strictfp int max(int, int);
 public static strictfp long max(long, long);
 public static strictfp float max(float, float);
 public static strictfp double max(double, double);
 public static strictfp int min(int, int);