Formatting Numbers

Number Format Class

Java has an in built methods to assist in formatting numbers in the java.text package called NumberFormat.

import java.text.NumberFormat;

    NumberFormat = currency = new NumberFormat()
    // This will not work as the class is abstract (discussed more later)
    // As the class is abstract it is not instantiated.

    NumberFormat currency = NumberFormat.getCurrencyInstance();
    // This would create an instance of the class and return it
    // Instead of using new operaters we use these methods.
    // These are called Factory Methods

    String result = currency.format(1234567.891)
    // This method would return a string representation of the number formatted as currency
    // $1,234,567.89