NumberFormat getNumberInstance() method in Java with Examples

1. The getNumberInstance() method is a built-in method of the java.text.NumberFormat returns an general purpose number format for the current default FORMAT locale.

   Syntax:

   public static final NumberFormat getNumberInstance()

   Parameters: The function does not accepts any parameter.

   Return Value: The function returns the NumberFormat instance for general purpose formatting.

   Below is the implementation of the above function:

   Program 1:

   // Java program to implement
   // the above function
   
   import java.text.NumberFormat;
   import java.util.Locale;
   import java.util.Currency;
   
   public class Main {
       public static void main(String[] args)
           throws Exception
       {
   
           // Get the number instance
           NumberFormat nF
               = NumberFormat
                     .getNumberInstance();
   
           // Sets the currency to Canadian Dollar
           nF.setCurrency(
               Currency.getInstance(
                   Locale.CANADA));
   
           // Stores the values
           String values
               = nF.getCurrency().getDisplayName();
   
           // Prints the currency
           System.out.println(values);
       }
   }
   Output:

   Canadian Dollar
   

   Program 2:

   // Java program to implement
   // the above function
   
   import java.text.NumberFormat;
   import java.util.Locale;
   import java.util.Currency;
   
   public class Main {
       public static void main(String[] args)
           throws Exception
       {
   
           // Get the number instance
           NumberFormat nF
               = NumberFormat
                     .getNumberInstance();
   
           // Stores the values
           String values
               = nF.getCurrency()
                     .getDisplayName();
   
           // Prints the currency
           System.out.println(values);
       }
   }
   Output:

   US Dollar
   

   Reference: https://docs.oracle.com/javase/10/docs/api/java/text/NumberFormat.html#getNumberInstance()

2. The getNumberInstance(Locale inLocale) method is a built-in method of the java.text.NumberFormat returns a general-purpose number format for any specified locale.

   Syntax:

   public static NumberFormat getNumberInstance(Locale inLocale)

   Parameters: The function accepts a single mandatory parameter inLocale which describes the locale which is to specified.

   Return Value: The function returns the NumberFormat instance for general purpose number formatting.

   Below is the implementation of the above function:

   Program 1:

   // Java program to implement
   // the above function
   
   import java.text.NumberFormat;
   import java.util.Locale;
   import java.util.Currency;
   
   public class Main {
       public static void main(String[] args)
           throws Exception
       {
   
           // Get the integer instance
           NumberFormat nF
               = NumberFormat.getNumberInstance(
                   Locale.CANADA);
   
           // Stores the values
           String values
               = nF.getCurrency()
                     .getDisplayName();
   
           // Prints the currency
           System.out.println(values);
       }
   }
   Output:

   Canadian Dollar
   

   Reference: https://docs.oracle.com/javase/10/docs/api/java/text/NumberFormat.html#getNumberInstance(java.util.Locale)