Formatting String as double values

[Chidananda Sulur]

Hi,

This may be a simple one but need help. I want to convert a string to a double value and return the same without losing the formatting. The sample code is as enclosed.

public class TestDouble {
private static final String AMT = "100000000.376";
public static void main(String[] args) {
System.out.println("amount is "+AMT);
System.out.println("amount in double is "+Double.valueOf(AMT));
}
}

The output is
amount is 100000000.376
amount in double is 1.00000000376E8

I want the second value also to be displayed as 100000000.376 stored as a double without the exponential formatting. Please let me know any thoughts.

Thanks

[Nigel Browne]

import java.text.*;
 
public class TestDouble {
    private static final String AMT = "100000000.376";
    public static void main(String[] args) {
        System.out.println("amount is "+AMT);
        double d = Double.valueOf(AMT);
       [B] NumberFormat nf = new DecimalFormat("###0.###");[/B] //Create the format you want
        System.out.println("amount in double is "+ [B]nf.format(d)[/B]); //apply the format to your double
   }
}

[ October 08, 2004: Message edited by: Nigel Browne ]

[Edwin Keeton]

Could you use the BigDecimal class to display the correct format?
Like this:

 
import java.math.BigDecimal;
 
public class TestDecimal {
    private static final String AMT = "100000000.376";
    private static double amt;
 
    public static void main(String[] args) {
        System.out.println("amount is " + AMT);
        System.out.println("amount in double is " + Double.valueOf(AMT));
        System.out.println("amount as BigDecimal " + new BigDecimal(AMT));
        amt = new BigDecimal(AMT).doubleValue();
    }
}
 

[Chidananda Sulur]

Thanks, The decimalformat api seems to resolve the issue.