how to get two decimal places in java

using Java to realize the reciprocal mechanism between decimal and binary decimal This blog mainly describes the use of Java to achieve decimal and binary decimal number of the mutual transfer (do not invoke

1. Format with DecimalFormat,DecimalFormat df=new DecimalFormat ("0.00");System.out.println (Df.format (1.2));AskWhat if I have to use a double type? The questioner comments on ..... 2. double-type variable in Java preserves two decimal points Mport java.text.*;DecimalFormat df=new DecimalFormat (". # #");Double d=1252.2563;String St=df.format (d);System.out.println (ST);

Note that if the result is an infinite number of decimal places, you will get an error if you do not specifyImport Java.util.scanner;import Java.math.bigdecimal;public class Main {public static void main (String args[]) {Scanner in = new Scanner (system.in); BigDecimal a = In.nextbigdecimal (); BigDecimal B = in.nextbigdecimal (); System.out.println ("Add" + a.ad

Note If the result is an infinite number of decimal places, you will get an error if you do not specify a digit roundingImport Java.util.scanner;import Java.math.bigdecimal;public class Main {public static void main (String args[]) {Scanner in = new Scanner (system.in); BigDecimal a = In.nextbigdecimal (); BigDecimal B = in.nextbigdecimal (); System.out.println (

= 0; i ) {Pattern+ = "0"; } DecimalFormat DF=NewDecimalFormat (pattern); returnDf.format (d); } /*** (3) to keep the specified number of decimal digits by rounding, the number of digits is not sufficient for 0 supplement *@paramd decimal string form before formatting *@paramNewscale the number of decimal digits to keep *@returndecimal after formatting

In js, the most common method for getting the decimal point and the two decimal points is the rounding function. I have previously introduced this common function in js, which is useful here, next, let's take a look at some methods to get the float decimal point and sum up the following: we will introduce the implement

Use Javascript to get the first two digits of the float decimal point. For example, 22.127456 is used to get 22.13. How can this problem be solved? 1. Discard the fractional part and retain the integer part. ParseInt (5/2) 2. rounded up. If there is a decimal number, add 1 to the integer part. Math. ceil (5/2) 3. round

Request=(HttpServletRequest) actioncontext.get (strutsstatics.http_request); /**httpservletresponse Parameters*/HttpServletResponse Response=(HttpServletResponse) actioncontext.get (strutsstatics.http_response); /**Session Parameters*/Mapactioncontext.getsession (); Mapactioncontext.getapplication (); String LoginName=NULL; //SessionID in the context objectString sessionId =NULL; if(!Sessionmap.isempty ()) {LoginName=(String) sessionmap.get (Commonvar.sso_login_name_key); } if(NULL!=logi

Have a tried this?CGFloat val = 37.777779;CGFloat Rounded_down = Floorf (val * 100)/100; /* result:37.77 */CGFloat nearest = Floorf (val * 100 + 0.5)/100; /* result:37.78 */CGFloat rounded_up = Ceilf (val * 100)/100; /* result:37.78 */Source:rounding number to 2 Decimal Places in CComplementing:you just don ' t have control on how the computer would store the float value.So these rounded values is exactly t

/*** Java two integers divide two decimal places and convert decimals to percentages* In Java, when two integers are divided, because the number after the decimal point is truncated, the result of the operation will be an integer, if you want to

Keep two decimal places { Method 1 :{ Double C = 3.154215; Java. Text. decimalformat myformat = new java. Text. decimalformat ("0.00 "); String STR = myformat. Format (C );} Method 2 :{ Java. Text. decimalformat df = new java. Tex

How to make float keep two decimal places or decimal placeshttp://meryvn.blog.163.com/blog/static/36962664201173010402629/Two methods:Import java.math.*;......Method 1:float F = 34.232323;BigDecimal B = new BigDecimal (f);Float F1 = B.setscale (2, bigdecimal.round_half_up). Floatvalue ();B.setscale (2, bigdecimal.round_half_up) indicates rounding, reserving two

Keep two decimal places {Method One: {Double c=3.154215;Java.text.DecimalFormat myformat=new Java.text.DecimalFormat ("0.00");String str = Myformat.format (c);}Way two: {Java.text.DecimalFormat DF =new Java.text.DecimalFormat ("#.00");Df.format (the number you want to format);Example: New Java.text.DecimalFormat ("#.00"). Format (3.1415926)#.00 represents two decimal