# Java Math Class static int round(float f) with example

Java Math Class static int round(float f) method: Here, we are going to learn about the static int round(float f) method of Math Class with its syntax and example.
Submitted by Preeti Jain, on September 09, 2019

## Math Class static int round(float f)

• This method is available in java.lang package.
• This method is used to return the nearest int value to the given argument and it is rounded to an integer by adding 1/2 and convert the result from float to int.
• This is a static method, it is accessible with the class name too.
• The return type of this method is int, it returns an integer which will be converted the value from float-floating to int by adding 1/2 of the given argument.
• In this method, we pass only one parameter which represents a float number.
• If the value of the given parameter after the decimal point is greater than 4 then the value is incremented by 1 before the decimal point is returned, else if the value of the given argument after the decimal point is less than or equal to 4 then the same value before the decimal point is returned.
• This method does not throw any exception.

Syntax:

```    public static int round(float f){
}
```

Parameter(s): f – a float value whose nearest to integer value to be found.

Note:

• If we pass "NaN" (Not a Number), it returns 0.
• If we pass negative infinity, it returns the "Integer.MIN_VALUE".
• If we pass positive infinity, it returns the "Integer.MAX_VALUE".
• If we pass the value which is less than or equal to "Integer.MIN_VALUE", it returns "Integer.MIN_VALUE".
• If we pass the value which is greater than or equal to "Integer.MAX_VALUE", it returns "Integer.MAX_VALUE".

Return value:

The return type of this method is int, it returns an integer value which is the nearest to integer value of given parameter.

### Java program to demonstrate example of round(float f) method

```// Java program to demonstrate the example of
// round(float f) method of Math Class.

public class RintMethod {
public static void main(String[] args) {
// declaring the variables
float f1 = -1.0f / 0.0f;
float f2 = 1.0f / 0.0f;
float f3 = 1234.56f;
float f4 = 1234.42f;

// Here , we will get (Integer.MIN_VALUE) and we are
// passing parameter whose value is (-Infinity)
System.out.println("Math.round (f1): " + Math.round(f1));

// Here , we will get (Integer.MAX_VALUE) and we are
// passing parameter whose value is (Infinity)
System.out.println("Math.round (f2): " + Math.round(f2));

// Here , we will get (1235) and we are
// passing parameter whose value is (1234.56)
System.out.println("Math.round (f3): " + Math.round(f3));

// Here , we will get (1234) and we are
// passing parameter whose value is (1234.12)
System.out.println("Math.round (f4): " + Math.round(f4));
}
}
```

Output

```E:\Programs>javac RintMethod.java

E:\Programs>java RintMethod
Math.round (f1): -2147483648
Math.round (f2): 2147483647
Math.round (f3): 1235
Math.round (f4): 1234
```

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