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Type: Posts; User: krillov

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by krillov
Replies
10
Views
880

### [SOLVED] Re: Double rounding

Thanks, it worked. I tried in a smaller program like this:

import java.text.DecimalFormat;

public class Matte {

public static final double PI = 3.14;

by krillov
Replies
10
Views
880

### [SOLVED] Re: Double rounding

I defined PI like this: public static final double PI = 3.14;

Itīs very strange. I made a simple program and copied your code, but I got the same fail.

import java.text.DecimalFormat;
...

by krillov
Replies
10
Views
880

### [SOLVED] Re: Double rounding

Thanks for you both. I changed like this but it isnīt working correctly I got this result 28.0. It should be 28.26. And if I change the value of "h" in the main then I get this message:
...

by krillov
Replies
10
Views
880

### [SOLVED] Re: Double rounding

Iīm not sure if I did right but I did like this:

public static double volume (int r, int h)
{
DecimalFormat df = new DecimalFormat("#.##");
double volym=PI*r*r*h;
return...

by krillov
Replies
10
Views
880

### [SOLVED] Double rounding

Hi .. I would like to round off a number in a method and return the rounded number. I tried many different ways but I always got the same error message:

Matematik.java:70: error: incompatible...

by krillov
Replies
7
Views
599

### [SOLVED] Re: Prim numbers

I fixed it. :)

public class prim7 {

public static void main (String[] args) {

int prim=50;
int j;

by krillov
Replies
7
Views
599

### [SOLVED] Re: Prim numbers

Thanks again! Process completed now and it writes out numbers or not. It depends on if I set "result" to true or false. So I realized that my method doesn't do anything at all just sending back the...

by krillov
Replies
7
Views
599

### [SOLVED] Re: Prim numbers

Thank you. I haven't seen it. I tried again but when i fix a fail there will be an other. It is now: "prim4.java:42: error: variable result might not have been initialized return result; " Do you...

by krillov
Replies
7
Views
599

### [SOLVED] Re: Prim numbers

Thank you! I was trying as you said but it still writes an error message like: ...\prim4.java:42: error: missing return statement. I canīt find out what the problem is.

public class prim4 {
...

by krillov
Replies
7
Views
599

### [SOLVED] Prim numbers

I got a task to write a java program which can solve some mathematical actions. Every action has to be in separate methods. My problem is with a method which should sort prime numbers between 0 and a...