Java - round() Method

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Description:

The method round returns the closest long or int, as given by the methods return type.

Syntax:

This method has following variants:

long round(double d)

int round(float f)

Parameters:

Here is the detail of parameters:

  • d -- A double or float primitive data type

  • f -- A float primitive data type

Return Value:

  • This method Returns the closest long or int, as indicated by the method's return type, to the argument.

Example:

public class Test{ 

   public static void main(String args[]){
      double d = 100.675;
      double e = 100.500;
      float f = 100;
      float g = 90f;

      System.out.println(Math.round(d));
      System.out.println(Math.round(e)); 
      System.out.println(Math.round(f)); 
      System.out.println(Math.round(g)); 
   }
}

This produces the following result:

101
101
100
90



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