3 replies to this topic

[eman ahmed]

Hi all,

I have a requirement to print large double values without the exponential notaion. The double value can be a declared variable or any calculated value within the code. In any case, I should be able to print the result without containing the exponential notation. Please help me out.

[eman ahmed]

I tried to make it by using a BigDeciaml class in java
BigDecimal result =new BigDecimal (10.555551................11)
Sysout
(result )
and when I run that I found this message in console
java.lang.NoSuchMethodError: main
Exception in thread "main"

please any one who read my words
try to help me ... I'm really need a help

[wim DC]

About what kind of size of doubles are we talking here?

The following prints a double with 8 digits:

class Something{
 
public Something(){}
 
public static void main([URL="http://www.google.com/search?hl=en&q=allinurl%3Astring+java.sun.com&btnI=I%27m%20Feeling%20Lucky"]String[/URL][] args){
        [URL="http://www.google.com/search?hl=en&q=allinurl%3Adouble+java.sun.com&btnI=I%27m%20Feeling%20Lucky"]Double[/URL] number = 0.12345678;        
        [URL="http://www.google.com/search?hl=en&q=allinurl%3Asystem+java.sun.com&btnI=I%27m%20Feeling%20Lucky"]System[/URL].out.format("%.8f%n", number);
}
 
}

%n is just a newline so it acts the same as System.out.println(...);


And for very big numbers:

import java.math.BigDecimal;
 
class Something{
 
public Something(){}
 
public static void main([URL="http://www.google.com/search?hl=en&q=allinurl%3Astring+java.sun.com&btnI=I%27m%20Feeling%20Lucky"]String[/URL][] args){
        [URL="http://www.google.com/search?hl=en&q=allinurl%3Abigdecimal+java.sun.com&btnI=I%27m%20Feeling%20Lucky"]BigDecimal[/URL] number = new [URL="http://www.google.com/search?hl=en&q=allinurl%3Abigdecimal+java.sun.com&btnI=I%27m%20Feeling%20Lucky"]BigDecimal[/URL]("1234567890123456789000.1234567890");
        
        [URL="http://www.google.com/search?hl=en&q=allinurl%3Asystem+java.sun.com&btnI=I%27m%20Feeling%20Lucky"]System[/URL].out.println(number);
}
 
}

//Result: 1234567890123456789000.1234567890

Note that it's best to give a String as parameter for the BigDecimal constructor.

[eman ahmed]

thanks alot , I realy got it now
IT'S A very helpful site