# round « decimal « Java Data Type Q&A

### 1. How to properly display a price up to two decimals (cents) including trailing zeros in Java?    stackoverflow.com

There is a good question on rounding decimals in Java here. But I was wondering how can I include the trailing zeros to display prices in my program like: \$1.50, ...

### 2. round decimal to nearest 10th    stackoverflow.com

need to round my answer to nearest10th.

``````    double finalPrice = everyMile + 2.8;
DecimalFormat fmt = new DecimalFormat("0.00");

### 3. Round a double to 2 significant figures after decimal point    stackoverflow.com

suppose if the value is 200.3456 it should be formatted to 200.34 or if it is 200 then it should be 200.00

### 4. Java float 123.129456 to 123.12 without rounding    stackoverflow.com

How do you cut down float primitive in java to two decimal places, without using rounding?:

``````123.99999 to 123.99
-8.022222 to -8.02
``````
There should be no rounding just cut of the decimal places and ...

### 5. Rounding off in java    stackoverflow.com

I have a list that contains many decimal values.

• If i get a value of .032 i have to round it off to 3.2%
• If i get a value of 32.33 i have to ...

### 6. How to round the double value to 2 decimal points?    stackoverflow.com

I want to round up the double value upto 2 decimal points. for example: I have double d=2; and the result should be result =2.00

### 7. Round off decimal value up to nearest 0.05 value?    stackoverflow.com

I was reading How to round decimal value up to nearest 0.05 value??. It mentions the following stuff.

``````   Math.ceiling(myValue * 20) / 20
``````
How does this hack work ? I ...

### 8. Problem with Rounding off to nearest 0.05 value    stackoverflow.com

``````  Math.ceiling(myValue * 20) / 20
``````
I need the following output for corresponding ...

### 9. DecimalFormat rounding    stackoverflow.com

Here is small code to illustrate what I am seeing

``````float floater = 59.999f

DecimalFormat df = new DecimalFormat("00.0");

System.out.println(df.format(floater));
``````
This prints:
``````60.0
``````
I would like it to print
``````59.9
``````
What do I need to do?

### 10. How can I prevent decimals being rounded when using DecimalFormat?    stackoverflow.com

Can anyone help how can i prevent rounding decimal value.

``````DecimalFormat df = new DecimalFormat();

Object[] arrayRowResult = (Object[]) rowResult;
String a=df.format(arrayRowResult[0]) // [0] contain decimal(2,10) but format results rounded value
String b=df.format(arrayRowResult[1]) // [1] ...``````

### 11. How to round a float value to two decimal points    coderanch.com

Hai all, I have a float value in my java program which is used to calculate percentage. And i have to round that value to two decimal places. The conversion i am expecting is as follows 12.3476 to 12.35 12.9988 to 13.00 I tried with round(),number2str supported by Tutil class and some jstl tags also. But answer is not like i ...

### 15. Rounding decimal    coderanch.com

Hi. I want to round the decimal value 5.345 up to 5.35. How is that possible using java.math.BigDecimal? Using the follow code does not round up the last decimal point: float toBePaidTotalAmount = 5.345f; java.math.BigDecimal bd_toBePaidTotalAmount = new java.math.BigDecimal( toBePaidTotalAmount ); bd_toBePaidTotalAmount = bd_toBePaidTotalAmount.setScale( 2, java.math.BigDecimal.ROUND_HALF_UP ); toBePaidTotalAmount = bd_toBePaidTotalAmount.floatValue(); out.println("*************************** : Result is: 5.34"); bd_toBePaidTotalAmount = bd_toBePaidTotalAmount.setScale( 2, java.math.BigDecimal.ROUND_UP ); ...

### 16. Help with rounding decimals    java-forums.org

I need some help! I can't seem to get my output to round to two decimal places. Can anyone give me a hand with this I have tried countless ways of doing this and none of them have worked. I thought the code - DecimalFormat fmt = new DecimalFormat ("0.##"); would work but it hasn't. Here is my program- import java.awt.Color; ...

### 17. Compile Error (decimal rounding attempt)    java-forums.org

I am having a problem while trying to get user input data from a textField to a variable. The users are inputting numbers, most of which are declared as double. I found an example on the Internet where the programmer turned the values into strings but when I try to recreate this I get 3 compile errors saying "Can not find ...

### 18. Rounding decimal error    java-forums.org

I am trying to round these decimals, but I get the error unexpected type: found: value required: variable. (First of all I don't know how you can round a variable, but that's not the point) I just want to round, this shouldn't be rocket science and I probably made some stupid mistake, but I would really appreciate it if someone pointed ...

### 21. Help Round decimal 2 palces    forums.oracle.com

//Low Balance if (balance < 100.00) { JOptionPane.showMessageDialog (null, "You have fallen below the minium required balance and you have been charged:\$" + lbcharge); balance = balance - lbcharge; } else { lbcharge = 0.00; } //NSF Charge if (balance <= 0.00) { JOptionPane.showMessageDialog (null, "You have a negative balance and you have been charged:\$" + nsfcharge); balance = (balance - ...

### 22. How to avoid the round up from decimals?    forums.oracle.com

double Hours = time * StoH; //gets the total time in hours String extractMfromH = Double.toString(Hours); //transforms Hours to a string String getMinutes = extractMfromH.substring(2,10); //gets the decimal part from the total time double toMinutes = Double.parseDouble(getMinutes); //transforms the decimal part to a double double Minutes = (toMinutes/100000000) * HtoM; //converts the remaining part to minutes String extractSfromM = Double.toString(Minutes); //transforms ...

### 23. How to round to the next decimal    forums.oracle.com

I'm a little bit stumped as to how to round to the nearest thousandth of a decimal for example: Input is a float number: 12.1234 and Ouput is: 12.124 << yes thats correct you round up one regardless the input can be any number in the format of nn.nnnn or it can be just nn.nnn I was looking at the Math.round ...

### 25. Rounding off 2 decimal number    forums.oracle.com

Rounding mode to round towards the "nearest neighbor" unless both neighbors are equidistant, in which case, round towards the even neighbor. Behaves as for ROUND_HALF_UP if the digit to the left of the discarded fraction is odd; behaves as for ROUND_HALF_DOWN if it's even. Note that this is the rounding mode that minimizes cumulative error when applied repeatedly over a sequence ...