Rounding Float and Double Values to Integers - Java Language Basics

Java examples for Language Basics:float

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Introduction

Use java.lang.Math round() methods to round the number.

Demo Code

   
public class Main {
    /*  ww  w. java2  s .co m*/
    public static void main(String[] args){
        // Round a float value to an Integer
        System.out.println(roundFloatToInt(new Float("8.837")));
        System.out.println(roundDoubleToLong(new Double("9.9")));
    }
    
    /**
     * Rounds a floating-point number to an Integer and returns the result
     * @param myFloat
     * @return 
     */
    public static int roundFloatToInt(float myFloat){
        return Math.round(myFloat);
    }

    /**
     * Rounds a Double value to an Integer and returns the result
     * @param myDouble
     * @return 
     */
    public static long roundDoubleToLong(double myDouble){
        return Math.round(myDouble);
    }    
}

Result


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