6 public static void main(String[] args) { 7 8 DecimalFormat df1 = new DecimalFormat("0.0"); 9 System.out.println(df1.format(12.34)); 10 11 DecimalFormat df2 = new DecimalFormat("#.#"); 12 System.out.println(df2.format(12.34)); 13 14 DecimalFormat df3 = new DecimalFormat("000.000"...
基本类型、包装类、BigDecimal转String默认使用DecimalFormat格式化,@Mapping#numberFormat可以指定格式,Date转String默认使用SimpleDateFormat格式化,如默认格式不符要求,可以用,@Mapping可以指定格式。 enum和String:可直接转枚举定义的值,不支持MappingConstants.ANY_REMAINING BigDecimal(等)、基本数据类(包括包装类)和String: ...
java import java.math.BigDecimal; import java.text.DecimalFormat; public class Main { public static void main(String[] args) { BigDecimal decimal = new BigDecimal("123.456789"); DecimalFormat df = new DecimalFormat("#.##"); String decimalString = df.format(decimal); System.out.println(decimal...
The String is converted to a Decimal value. The String must be in the format accepted by the Java Double.parseDouble method. Parameters: str - the String value to convert. Returns: the Decimal value created Throws: NumberFormatException - if the value is in the wrong format or would...
Main.java import java.text.DecimalFormat; void main() { double n = 2_125_405.30; String pattern = "###,###.00"; var df = new DecimalFormat(pattern); System.out.println(df.format(n)); } The program prints a double value, whose digits are grouped. ...
import java.text.DecimalFormat; public class Main { public static void main(String[] args) { double value = 0.00; DecimalFormat decimalFormat = new DecimalFormat("#,##0.00"); String formattedValue = decimalFormat.format(value); System.out.println(formattedValue); } } ...
1importjava.math.BigDecimal;2importjava.text.DecimalFormat;3importjava.text.NumberFormat;45publicclassTestDecimal {6publicstaticvoidmain(String[] args) {7/**8* java.math.BigDecimal 该类型的数据精确度极高,适合做财务软件。9*10* 构造方法:11* BigDecimal(int) 创建一个具有参数所指定整数值的对象。12...
intnumber=269;Stringhex=String.format("%x",number);// '10d' 3.3. Using a Custom Method We can also create a custom method and code for the algorithm discussed in the first section of this article. Perform thelong divisionof the decimal number. ...
publicstaticvoid main(String[] args) { //DecimalFormat df = new DecimalFormat("0.00#"); //两个构造器 DecimalFormat decimalFormat =newDecimalFormat(); decimalFormat.applyPattern(".###"); System.out.println(decimalFormat.format(23.112));//23.112 ...
Constructs a newly allocated Decimal object from a String value. The String is converted to a Decimal value. The String must be in the format accepted by the Java Double.parseDouble method. Parameters: s - the String value to convert. Returns: the Decimal value created Throws: NumberFormatExce...