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# BigInteger floatValue() Method in Java

• Last Updated : 04 Dec, 2018

The java.math.BigInteger.floatValue() converts this BigInteger to a float value. If the value returned by this function is too big for a magnitude to represent as a float then it will be converted to Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY as appropriate. There is a chance that this conversion can lose information about the precision of the BigInteger value.

Syntax:

`public float floatValue()`

Returns: The method returns a float value which represents float value for this BigInteger.

Examples:

```Input: BigInteger1=32145
Output: 32145.0
Explanation: BigInteger1.floatValue()=32145.0.

Input: BigInteger1=32145535361361525377
Output: 3.2145535E19
Explanation: BigInteger1.floatValue()=3.2145535E19. This BigInteger is too big
for a magnitude to represent as a float then it will be converted to
Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY as appropriate.
```

Below programs illustrate floatValue() method of BigInteger class:

Example 1:

 `// Java program to demonstrate floatValue() method of BigInteger ` ` `  `import` `java.math.BigInteger; ` ` `  `public` `class` `GFG { ` ` `  `    ``public` `static` `void` `main(String[] args) ` `    ``{ ` ` `  `        ``// Creating 2 BigInteger objects ` `        ``BigInteger b1, b2; ` ` `  `        ``b1 = ``new` `BigInteger(``"32145"``); ` `        ``b2 = ``new` `BigInteger(``"7613721"``); ` ` `  `        ``// apply floatValue() method ` `        ``float` `floatValueOfb1 = b1.floatValue(); ` `        ``float` `floatValueOfb2 = b2.floatValue(); ` ` `  `        ``// print floatValue ` `        ``System.out.println(``"floatValue of "` `                           ``+ b1 + ``" : "` `+ floatValueOfb1); ` `        ``System.out.println(``"floatValue of "` `                           ``+ b2 + ``" : "` `+ floatValueOfb2); ` `    ``} ` `} `

Output:

```floatValue of 32145 : 32145.0
floatValue of 7613721 : 7613721.0
```

Example 2: When return float is too big for a magnitude to represent as a float.

 `// Java program to demonstrate floatValue() method of BigInteger ` ` `  `import` `java.math.BigInteger; ` ` `  `public` `class` `GFG { ` ` `  `    ``public` `static` `void` `main(String[] args) ` `    ``{ ` `        ``// Creating 2 BigInteger objects ` `        ``BigInteger b1, b2; ` ` `  `        ``b1 = ``new` `BigInteger(``"32145535361361525377"``); ` `        ``b2 = ``new` `BigInteger(``"7613721535372632367351"``); ` ` `  `        ``// apply floatValue() method ` `        ``float` `floatValueOfb1 = b1.floatValue(); ` `        ``float` `floatValueOfb2 = b2.floatValue(); ` ` `  `        ``// print floatValue ` `        ``System.out.println(``"floatValue of "` `                           ``+ b1 + ``" : "` `+ floatValueOfb1); ` `        ``System.out.println(``"floatValue of "` `                           ``+ b2 + ``" : "` `+ floatValueOfb2); ` `    ``} ` `} `

Output:

```floatValue of 32145535361361525377 : 3.2145535E19
floatValue of 7613721535372632367351 : 7.6137214E21
```

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