Java Answers Forum - change the point: 3.388443E-4 --> 0,0003388

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change the point: 3.388443E-4 --> 0,0003388

1 reply on 1 page. Most recent reply: Jun 22, 2003 11:28 PM by Matt Gerrans

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jarvis Cocker

Posts: 1
Nickname: jarvis19
Registered: Jun, 2003

change the point: 3.388443E-4 --> 0,0003388

Posted: Jun 22, 2003 5:25 AM

how can I change the point?

I´ve got the following method to calculate 10^(-3,46)

public double AP1 (double S1)
{
double s = 123 - S1;
int f = 5;
double c = ((s/20) - (92.4/20) - f);
double base = 10;
double distanz = Math.pow(base, c);
System.out.println(s + " " + c);
return distanz;

}

the output is 3.3884415613920273E-4
but do I have to change that the output is without E-4 like 0,000338844156

??

Matt Gerrans

Posts: 1153
Nickname: matt
Registered: Feb, 2002

Re: change the point: 3.388443E-4 --> 0,0003388

Posted: Jun 22, 2003 11:28 PM

Look at the NumberFormat and DecimalFormat classes. I haven't fooled with these much, but I think you may need to cast the NumberFormat object you get from getInstance() to a DecimalFormat if you want to preserve locale-specific information.

Here's a simple example of just DecimalFormat alone:

System.out.println( new DecimalFormat("#.#######").format( 0.00002 ) );

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