Java Round up Any Number

Question

I can t seem to find the answer I m looking for regarding a simple question  how do I round up any number to the nearest int   For example  whenever the number is 0 2  0 7  0 2222  0 4324  0 99999 I would want the outcome to be 1   So far I have  int b    int  Math ceil a   100     It doesn t seem to be doing the job  though

User · Answer

int RoundedUp    int  Math ceil RandomReal     This seemed to do the perfect job  Worked everytime

User · Answer

Assuming a as double and we need a rounded number with no decimal place   Use Math round   function  This goes as my solution     double a   0 99999  int rounded a    int Math round a   System out println  a   rounded a     Output    a 1

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I don t know why you are dividing by 100 but here my assumption int a   int b    int  Math ceil    double a    100     or   int b    int  Math ceil  a   100 0

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Math ceil   is the correct function to call  I m guessing a is an int  which would make a   100 perform integer arithmetic  Try Math ceil a   100 0  instead   int a   142  System out println a   100   System out println Math ceil a   100    System out println a   100 0   System out println Math ceil a   100 0    System out println  int  Math ceil a   100 0      Outputs   1 1 0 1 42 2 0 2   See http   ideone com yhT0l

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10 years later but that problem still caught me   So this is the answer to those that are too late as me   This does not work  int b    int  Math ceil a   100     Cause the result a   100 turns out to be an integer and it s rounded so Math ceil  can t do anything about it   You have to avoid the rounded operation with this   int b    int  Math ceil  float  a   100     Now it works

User · Answer

The easiest way to do this is just   You will receive a float or double and want it to convert it to the closest round up then just do   System out println  int Math ceil yourfloat     it ll work perfectly

[java] Java Round up Any Number

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