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formatting floating-point number as String, you can pass both float and double
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This is probably the easiest way to format a date as a String in Java, It doesn't require you to create a SimpleDateFormat object and handle the formatting of the date by yourself. This example will print "Date in MM/dd/yy format is 12/07/16", you can see that today's date is nicely formatted in MM/dd/yy format. (" Date in MM/dd/yy format is %tD %n", new Date()) formatting Date to String using %D flag, %D is for MM/dd/yy format This will print "NewYork, London, Tokyo", you can see that even though you passed Tokyo as first parameter it appeared last in formatted String because we have re-ordered output using explicitly argument indices. re-ordering output using explicit argument indices This will print "length of String abcd is 4 ", you can see that "abcd" and "4" are dynamically appended into given String based upon formatting instruction and values you passed. out.printf( "length of String %s is %d %n", "abcd", "abcd".length()) formatting String with dynamic String and Integer input The whole formatting process works based on the instruction you give. The second most important thing you need to learn for formatting String in Java is formatting instructions like %s, %d, %n etc. The key difference between them is that printf() prints the formatted String into console much like () but the format() method returns a formatted string, which you can store or use the way you want. There are two key things to learn, first, you can use either printf() or format() to format a String. Here are a couple of examples of formatting String or text in Java. You should use String.format() method if you need a formatted String and use () if you need to display formatted String on the console.ħ Examples of formatting String and Text in Java Many developers also confuse between printf() and format(), they are exactly same, only different is one is declared in class and other is on java.io.PrintStream. If your job involves lots of String formatting stuff then you will automatically know the nitty-gritty of it like some advanced uses of the String.format() method, which we will see in this article. Matches ideographic characters, such as Han and Kanji.Java's String formatting is also more strict than C's, for example, if a conversion is incompatible with a flag then Java throws an Exception ( ), while in C, incompatible flags are silently ignored.Īs a programmer, what is most important to learn regarding String formatting is those flags, as long as you know about them or have an idea where to refer, you are good. Matches Korean Hangul and combining Jamos. Matches characters from right-to-left scripts such as Arabic and Hebrew. Matches all types of white space, including publishing and ideographic spaces. Matches any one punctuation mark, such as ?, ', and so on. For example, :Alhe matches words such as "The", "then", and "reached". In addition to the standard Unicode character properties, the following additional properties may be specified as part of a character set. For example, in Find and Replace, the braces notation x matches "xababx" and "xabababx" but not "xababababx" There are syntax differences between the regular expressions that can be used in Find what strings and those that are valid in Microsoft.