publicclassMain{publicstaticvoidmain(String[]args){MyClassmyObject=newMyClass();myObject.amount=10.12345;TwoDecimalPlacesProcessor.process(myObject);System.out.println(myObject.amount);// 输出: 10.12System.out.println(myObject.calculateAmount());// 输出: 10.12}} 1. 2. 3. 4. 5. 6. 7. 8...
publicclassDecimalChecker{publicstaticbooleanisTwoDecimalPlaces(doublenumber){returnnumber>=10&&number<100;}publicstaticvoidmain(String[]args){doublenumber1=12.34;doublenumber2=123.456;doublenumber3=1.2;System.out.println(number1+" is two decimal places: "+isTwoDecimalPlaces(number1));System.out.print...
BigDecimal bigDecimal=newBigDecimal(numStr);double doubleNum=bigDecimal.setScale(2,BigDecimal.ROUND_HALF_UP).doubleValue();/** * String s=String.format("%.2f",d); *若double d=0.6566,输出结果为0.66; *若double d=0,输出结果为0.00; */String keepTwoDecimalPlaces=String.format("%.2f",doubleN...
Java-examples #BigDecimal setScale method #How to Round BigDecimal to the nearest whole or integer value This tutorial is about how to round aBigDecimalvalue to n decimal places in Java. TheBigDecimalclass provides thesetScaleandroundmethods for achieving this. ...
Each test case contains a char C (+,-,*, /) and two integers A and B(0<A,B<10000).Of course, we all know that A and B are operands and C is an operator. Output For each case, print the operation result. The result should be rounded to 2 decimal places If and only if ...
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. ...
For each case, print the operation result. The result should be rounded to 2 decimal places If and only if it is not an integer. Sample Input 4 + 1 2 - 1 2 * 1 2 / 1 2 Sample Output 3 -1 2 0.50 import java.util.Scanner; ...
We currently have a broken calculator and we need to get basic functions working. When we enter in two numbers they should be added, subtracted, multiplied and divided. This calculator only works with integers as well. The program runs using the arguments 9 and 8 ...
I have a form that needs to multiply two fields and then raound the answer to the nearest ten. Below is what I have, can someone please tell me what I am missing function DoubleRound(nDec, nValue) {// Rounding function - round nValue to nDec decimal places// use a double round to...
123456.789 ###.## 123456.79 The value has three digits to the right of the decimal point, but the pattern has only two. The format method handles this by rounding up. 123.78 000000.000 000123.780 The pattern specifies leading and trailing zeros, because the 0 character is used instead of the...