public class PrintTwoDecimalPlaces { public static void main(String[] args) { double number = 123.456789; String formattedNumber = String.format("%.2f", number); System.out.println(formattedNumber); // 输出: 123.46 } } 3. 使用DecimalFormat类 DecimalFormat是Java中的一个类,用于格式化数字。它...
importjava.util.regex.Matcher;importjava.util.regex.Pattern;publicclassDecimalFormatter{publicstaticvoidmain(String[]args){Stringinput="123.456";// 输入的测试数字StringformattedNumber=formatToTwoDecimalPlaces(input);// 调用格式化方法System.out.println(formattedNumber);// 输出格式化结果}publicstaticStringfor...
public static void main(String[] args) { double decimalNumber = 123.456789; // 默认格式输出(通常保留 6 位小数) System.out.printf("Default format: %f%n", decimalNumber); // 保留两位小数 System.out.printf("Two decimal places: %.2f%n", decimalNumber); // 保留四位小数 System.out.printf...
String.Format("{0:0.00}", 123.4); // "123.40" String.Format("{0:0.00}", 123.0); // "123.00" 1. 2. 3. 4. 在下面的例子格式字符串浮点数与小数。例如最大的小数点后两位使用模式 “0.##“. [C#] // max. two decimal places String.Format("{0:0.##}", 123.4567); // "123.46" ...
The program formats a double value in two formats. var df = new DecimalFormat("#.##"); We create a new instance of theDecimalFormat. We pass it a non-localized pattern string. The pattern defines a format for a decimal value with a dot followed by two decimal places. ...
### 使用 `String.format()` ```java public class FormattingExample { public static void main(String[] args) { double pi = Math.PI; String formattedPi = String.format("The value of Pi to two decimal places is: %.2f", pi); System.out.println(formattedPi); } } ``` ### 使用 `...
Java - Limiting decimal places, Try using: String.format ("%.2f", numberToBeRounded); For example, you can replace the line containing case 0 with this: case 0: answerTxt.setText ( String.format ("%.2f", (firstNumber * secondNumber) / 2 ) ); break; The %.2f format specifier wil...
return 0; } Format string to 2 digits c# Code Example, // just two decimal places String.Format("{0:0.00}", 123.4567); // "123.46" String.Format("{0:0.00}", 123.4); // "123.40" String.Format("{0:0.00}", 123.0); // …...
TheString#formatmethod is very useful for formatting numbers. The method takes two arguments. The first argument describes the pattern of how many decimals places we want to see, and the second argument is the given value: doublevalue=4.2352989244d; assertThat(String.format("%.2f", value))....
BigDecimalUtil+BigDecimal number+String toString()+String formatToTwoDecimalPlaces()+String formatWithPattern(String pattern) 4.2 类实现 以下是BigDecimalUtil类的实现示例: AI检测代码解析 importjava.math.BigDecimal;importjava.text.DecimalFormat;publicclassBigDecimalUtil{privateBigDecimalnumber;publicBigDecimalUtil(...