Java. text. DecimalFormat class decimal format,

Java. text. DecimalFormat class decimal format,

The specific code of the java. text. DecimalFormat class in decimal format is for your reference. The specific content is as follows:

Import java. text. decimalFormat; class FormatDemo {public void format1 (String pattern, double value) {// declare a DecimalFormat object DecimalFormat df = new DecimalFormat (pattern); String str = df. format (value); System. out. println ("format with" + pattern + ":" + value + "Get:" + str) ;}} public class Test {public static void main (String args []) {FormatDemo fd = new FormatDemo (); fd. format1 ("###,###. ### ", 111222.34567); // the front side is not enough to add 0, and the backend is not enough to make up 0 fd. format1 ("000,000.000", 11222.34567); fd. format1 ("###,###. ### ￥ ", 111222.34567); fd. format1 ("000,000.000 $", 11222.34567); // The number of fd. format1 ("##. ### % ", 0.345678); // The number of fd. format1 ("00. ### % ", 0.0345678); // Number of thousands of fd. format1 ("###. ###/u2030 ", 0.345678); // exponential form DecimalFormat df1 = new DecimalFormat (); // use applypattern df1.applyPattern (" 0.000E0000 "); System. out. println (df1.format (111222.34567 ));}}

Program running result:

###,###. ### Style formatting: 111222.34567 get: 111,222.346 use 000,000.000 style formatting: 11222.34567 get: 011,222.346 use ###,###. ### $ format: 111222.34567 get: 111,222.346 use 000,000.000 format: 11222.34567 get: 011,222.346 use ##. ### % format: 0.345678 get: 34.568% use 00. ###% style formatting: 0.0345678 get: 03.457% use ###. ### ‰ style formatting: 0.345678 get: 345.678 ‰ 1.20.e0005

DecimalFormat format template

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