Round Off a Float Number to 2 Decimals in Java
Learn to round off a given floating point number to 2 decimal points in Java. As the best practice, always use the Decimal class with rounding mode set to HALF_EVEN.
Format Output with Java Printf
Learn to print formatted output in Java using the format() and printf() methods. Learn to format strings, date-time, floats with precision.
Compact Number Formatting in Java
Learn to apply locale-sensitive compact/short number formatting to general purpose numbers e.g. decimal, currency, and percentage. It is added in Java 12 in CompactNumberFormat class.
Format a Phone Number with Regex in Java
Learn to format a specified string to a phone number pattern, which is ‘(123) 456-6789’. This conversion is generally required in applications where customer data has to be displayed, and phone number is part of this data. 1. Format String to ‘(###) ###-####‘ Pattern To format string to phone number …
Convert Float to String in Java with N Decimal Places
Convert a float to a String in Java with Float.toString() or String.valueOf(), and format it to 2 or N decimal places with String.format() or DecimalFormat. Learn the rounding rules, the locale trap and why 2.675f becomes 2.67.
Underscores in Numeric Literals in Java
Learn to use underscores between digits in Java numerical literals such as int, long or double. It helps in improving the code readability.