![]() For example, in the pattern #,#.# the comma is the thousands-separator and the period represents the decimal point. So far the formatting patterns discussed here follow the conventions of U.S. If you want a DecimalFormat object for a non-default Locale, you instantiate a NumberFormat and then cast it to DecimalFormat. The preceding example created a DecimalFormat object for the default Locale. The pattern specifies the currency sign for Japanese yen (¥) with the Unicode value 00A5. Note that it immediately precedes the leftmost digit in the formatted output. The first character in the pattern is the dollar sign ($). The pattern specifies leading and trailing zeros, because the 0 character is used instead of the pound sign (#). The format method handles this by rounding up. The value has three digits to the right of the decimal point, but the pattern has only two. The pound sign (#) denotes a digit, the comma is a placeholder for the grouping separator, and the period is a placeholder for the decimal separator. Output from DecimalFormatDemo Program value The output, which is a String, represents the formatted number. The pattern is the String that specifies the formatting properties. The value is the number, a double, that is to be formatted. The output for the preceding lines of code is described in the following table. ![]() String output = myFormatter.format(value) The format method accepts a double value as an argument and returns the formatted number in a String:ĭecimalFormat myFormatter = new DecimalFormat(pattern) ![]() The example that follows creates a formatter by passing a pattern String to the DecimalFormat constructor. For a full description of the pattern syntax, see Number Format Pattern Syntax. The pattern determines what the formatted number looks like. You specify the formatting properties of DecimalFormat with a pattern String. The code examples in this material are from a sample program called The text that follows uses examples that demonstrate the DecimalFormat and DecimalFormatSymbols classes. These classes offer a great deal of flexibility in the formatting of numbers, but they can make your code more complex. ![]() If you want to change formatting symbols, such as the decimal separator, you can use the DecimalFormatSymbols in conjunction with the DecimalFormat class. This class allows you to control the display of leading and trailing zeros, prefixes and suffixes, grouping (thousands) separators, and the decimal separator. Save my name, email, and website in this browser for the next time I comment.You can use the DecimalFormat class to format decimal numbers into locale-specific strings. Your email address will not be published. Java Basics Introduction Hello World Object and Class Data types Variables Access modifiers Super keyword this keyword Control Statements For loop While loop Do While loop if else statement in java Switch case break statement continue statement Object Oriented Constructor Abstraction Interface Abstract class Abstract Class Vs Interface Polymorphism Encapsulation Collections HashMap LinkedHashMap TreeMap HashSet TreeSet LinkedHashSet ArrayList HashMap to ArrayList Sort HashMap Iterate HashMap Internal Working of HashMap Hashtable Vs HashMap HashMap Vs HashSet Comparable Comparator Comparator Vs Comparable Multithreading Thread Process vs thread Join Daemon thread Sleep Can we start a thread twice in java Can we call run() method directly to start a new thread wait, notify and notifyAll print even and odd numbers Sleep vs wait Object level locking vs Class level locking Executor Framework ThreadPoolExecutor newFixedThreadPool newCachedThreadPool ScheduledThreadPoolExecutor FutureTask Concurrent Utils ConcurrentHashMap BlockingQueue CountDownLatch CyclicBarrier Semaphore Exchanger CountDownLatch vs CyclicBarrier Serialization Serialization Externalizable serialVersionUID Transient keyword Serializable vs Externalizable Exception Handling Exception handling Throw vs Throws Custom Exception Checked Vs unchecked Exception try with resources Java 8 Functional interface Lambda Expressions Stream filter Interface default methods Supplier Consumer Predicate Collectors forEach loop Lamba Expression Comparator Java 9 Private methods in interface Try with resources Javadoc Improvement Underscore(_) keyword Diamond Operator Annotation Interview Questions Core java OOPS Exception Handling Method overloading and overriding Multithreading Collections Serialization String Immutable Data Structure and algorithm Interview Programs ![]()
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