The java.math.BigDecimal.scale() is an inbuilt method in java that returns the scale of this BigDecimal.
- For zero or positive value, the scale is the number of digits to the right of the decimal point.
- For negative value, the unscaled value of the number is multiplied by ten to the power of the negation of the scale.
Syntax:
public int scale()
Parameters: This method does not accepts any parameter.
Return value: This method returns the scale of this BigDecimal object.
Below program illustrates the working of the above mentioned method:
Program 1:
// Java program to demonstrate the// scale() method  import java.math.*;  public class Gfg {      public static void main(String[] args)    {          BigDecimal b1 = new BigDecimal("456.0");        BigDecimal b2 = new BigDecimal("-1.456");          // Assign the result of scale on        // BigDecimal Objects b1, b2 to int objects i1, i2        int i1 = b1.scale();        int i2 = b2.scale();          // Print the values of i1, i2;        System.out.println("The scale of " + b1 + " is " + i1);        System.out.println("The scale of " + b2 + " is " + i2);    }} |
Output:
The scale of 456.0 is 1 The scale of -1.456 is 3
Program 2:
// Java program to demonstrate the// scale() method  import java.math.*;  public class Gfg {      public static void main(String[] args)    {          BigDecimal b1 = new BigDecimal("745");        BigDecimal b2 = new BigDecimal("-174");          // Assign the result of scale on        // BigDecimal Objects b1, b2 to int objects i1, i2        int i1 = b1.scale();        int i2 = b2.scale();          // Print the values of i1, i2;        System.out.println("The scale of " + b1 + " is " + i1);        System.out.println("The scale of " + b2 + " is " + i2);    }} |
Output:
The scale of 745 is 0 The scale of -174 is 0
Reference: https://docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html#scale()
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