BigDecimal scaleByPowerOfTen() method in Java

• Last Updated : 11 Mar, 2022

The java.math.BigDecimal.scaleByPowerOfTen(int n) is an inbuilt method on java that returns a BigDecimal whose numerical value is equal to (this * 10n). The scale of the result is (this.scale() – n).
Syntax:

`public BigDecimal scaleByPowerOfTen(int n)`

Parameters:
The method accepts a single parameter n of integer type which refers to the value by which BigDecimal object is multiplied to power of ten.
Return value:This method returns the BigDecimal object of value this * 10n.
Below program illustrates the above mentioned method:
Program 1:

Java

 `// Java program to demonstrate the``// scaleByPowerOfTen() method` `import` `java.math.*;` `public` `class` `Gfg {` `    ``public` `static` `void` `main(String[] args)``    ``{` `        ``// Assign two bigdecimal objects``        ``BigDecimal b1 = ``new` `BigDecimal("``754.000``");``        ``BigDecimal b2 = ``new` `BigDecimal("``75400``");` `        ``// Assign the result of method on b1, b2``        ``// to BigDecimal objects b3, b4``        ``BigDecimal b3 = b1.scaleByPowerOfTen(``4``);``        ``BigDecimal b4 = b2.scaleByPowerOfTen(-``4``);` `        ``// Print b3, b4 values``        ``System.out.println(b1 + " raised to power is " + b3);``        ``System.out.println(b2 + " raised to power is " + b4);``    ``}``}`

Output:

```754.000 raised to power is 7.54000E+6
75400 raised to power is 7.5400```

Program 2:

Java

 `// Java program to demonstrate the``// scaleByPowerOfTen() method` `import` `java.math.*;` `public` `class` `Gfg {` `    ``public` `static` `void` `main(String[] args)``    ``{` `        ``// Assign two bigdecimal objects``        ``BigDecimal b1 = ``new` `BigDecimal("``200``");``        ``BigDecimal b2 = ``new` `BigDecimal("``7540000000``");` `        ``// Assign the result of method on b1, b2``        ``// to BigDecimal objects b3, b4``        ``BigDecimal b3 = b1.scaleByPowerOfTen(``4``);``        ``BigDecimal b4 = b2.scaleByPowerOfTen(-``4``);` `        ``// Print b3, b4 values``        ``System.out.println(b1 + " raised to power is " + b3);``        ``System.out.println(b2 + " raised to power is " + b4);``    ``}``}`

Output:

```200 raised to power is 2.00E+6
7540000000 raised to power is 754000.0000```

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