# BigDecimal movePointLeft() Method in Java

• Last Updated : 04 Dec, 2018

prerequisite : BigDecimal Basics

The java.math.BigDecimal.movePointLeft(int n) method is used to move the decimal point of the current BigDecimal by n places to the left.

• If n is non-negative, the call merely adds n to the scale.
• If n is negative, the call is equivalent to movePointRight(-n).

The BigDecimal value returned by this method has value (this × 10-n) and scale max(this.scale()+n, 0).

Syntax:

`public BigDecimal movePointLeft(int n)`

Parameter: The method takes one parameter n of integer type which refers to the number of places the decimal point is required to be moved towards the left.

Return Value: The method returns the same BigDecimal value with the decimal point moved n places to the left.

Exception: The method throws an ArithmeticException if the scale overflows.
Examples:

```Input: value = 2300.9856, Leftshift = 3
Output: 2.3009856
Explanation:
while shifting the decimal point of 2300.9856
by 3 places to the left, 2.3009856 is obtained
Alternate way: 2300.9856*10^(-3)=2.3009856

Input: value = 35001, Leftshift = 2
Output: 350.01
```

Below program illustrate the movePointLeft() method of BigDecimal:

 `// Program to demonstrate movePointLeft() method of BigDecimal  ` ` `  `import` `java.math.*; ` ` `  `public` `class` `GFG { ` ` `  `    ``public` `static` `void` `main(String[] args) ` `    ``{ ` ` `  `        ``// Create BigDecimal object ` `        ``BigDecimal bigdecimal = ``new` `BigDecimal(``"2300.9856"``); ` ` `  `        ``// Create a int i for decimal left move distance ` `        ``int` `i = ``3``; ` ` `  `        ``// Call movePointLeft() method on BigDecimal by shift i ` `        ``// Store the return value as BigDecimal ` `        ``BigDecimal changedvalue = bigdecimal.movePointLeft(i); ` ` `  `        ``String result = ``"After applying decimal move left by move Distance "`  `        ``+ i + ``" on "` `+ bigdecimal + ``" New Value is "` `+ changedvalue; ` ` `  `        ``// Print result ` `        ``System.out.println(result); ` `    ``} ` `} `

Output:

```After applying decimal move left by move Distance 3 on 2300.9856 New Value is 2.3009856
```
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