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Java Float Wrapper Class Example

  1. /*
  2.   Java Float Example
  3.   This example shows how an object of Float can be declared and used.
  4.   Float is a wrapper class provided to wrap float primitive value. It has a single
  5.   field of type float.
  6. */
  7.  
  8. public class JavaFloatExample {
  9.  
  10.   public static void main(String[] args) {
  11.    
  12.     //create a Float object using one of the below given constructors
  13.    
  14.     //1. Create an Float object from float primitive type
  15.     float f = 10.10f;
  16.     Float fObj1 = new Float(f);
  17.     System.out.println(fObj1);
  18.    
  19.     //2. Create an Float object from double primitive type
  20.     double d = 10.10;
  21.     Float fObj2 = new Float(d);
  22.     System.out.println(fObj2);
  23.    
  24.     /*
  25.     3. Create and Float object from String. Please note that this method can
  26.     throw NumberFormatException if string doesnt contain parsable number.
  27.     */
  28.     Float fObj3 = new Float("25.34");
  29.     System.out.println(fObj3);    
  30.    
  31.   }
  32. }
  33.  
  34.  
  35. /*
  36. Output of the program would be
  37. 10.1
  38. 10.1
  39. 25.34
  40. */