**Method 1:**

x = (double)int((x+0.005)*100.0)/100.0;

**Method 2:**

x = Math.round(x*100.0) / 100.0;

**Method 3:**

DecimalFormat df2 = new DecimalFormat( "#,###,###,##0.00" );

double dd = 100.2397;

double dd2dec = new Double(df2.format(dd)).doubleValue();

**Method 4:**

f = (float) (Math.round(n*100.0f)/100.0f);

**Method 5:**

double r = 5.1234;

System.out.println(r); // r is 5.1234

int decimalPlaces = 2;

BigDecimal bd = new BigDecimal(r);

bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP); // setScale is immutable

r = bd.doubleValue();

System.out.println(r); // r is 5.12

[source: www.thescripts.com, accuracy unchecked]

**How I did it:**

float percentage = score.floatValue()/(qapairs.length*10)*100; //my float value

percentage = Float.valueOf((new DecimalFormat("###.00").format(percentage)));

## 15 comments:

thanks! this post is helpful!

Hi

This post was very helpful - I used method 4 in one of my dashboard reports in excel and works like a charm.

Thanks

Yudesh

Thanks for the post. I found it useful!

WOW!!!!!!!!!

NUMBER 2 IS FANTASTIC,WORKED LIKE A....AH..anyway it worked!!

THANKS.

to round string value

"479.357" to "479.36"

thx bro helped a lot =D

dunno how you did method 2, plz send me explanation if you can and if you're still around:

aamir_raza60@hotmail.com

Thanks!

Hi, Good very Good!

Number two is fantastic..

Congratatulations.

Hey Salman!

This is a very useful post. Good job.

i came to know new thing today it helped me alot.I use a version like #3 - this is a good format because it is very intuitive if you wish to vary the number of significant digits(decimal places) by just extended the decimal format string pattern. My version is close to Salman's but I have a different format implementation. Instead of the new Double etc. etc

Double numberFormatted = Double.parseDouble(df2.format(numberToBeRounded))

Thanks,

BP

Thanks, it was very useful.

Thanks, that cut the mustard for me!

Seriously, your solutions are miles ahead of everything else I've seen on the web.

Keep it up Salman!!

I used method 4, it worked a treat. Thank you.

It's amazing how users like can find this article incredibly useful 4 years after you wrote it. Keep up the good article writing.

Thanks brother. Tried

Method 5. Worked Wonders. :)A Real help. Thanks :D

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