Thread: Double.toString bug. Spurious right parenthesis and an asterisk replace digits.

// my code here
String pdecimal = Double.toString(guess);

contents of 'guess' ---->>0.00891396012251904
The result string field 'pdecimal' displays -->> 0.00) <<--
That is to say "zero point zero zero parenthesis".
Only with very few numbers such as above does the bug show up.
Using ECLIPSE Version: 3.4.2
Build id: M20090211-1700
Other 'toString's in program work ok.

It works perfectly fine for me. Post a SSCCE.

I think its a case of the IDE doing something on its own vs using Oracle's programs.

Originally Posted by Norm

I think its a case of the IDE doing something on its own vs using Oracle's programs.

i agree; in other java programs the number converts ok. but when i filed a bug on ECLIPSE forum they said it was a java problem.
...thanks for your reply...

Originally Posted by Junky

It works perfectly fine for me. Post a SSCCE.

what's SSCCE? i already posted problem as a bug on ECLIPSE forum.
i agree; in other java programs the number converts ok. but when i filed a bug on ECLIPSE forum they said it was a java problem.
...thanks for your reply...

on ECLIPSE forum they said it was a java problem.

Did they say which version of java?
This works for me on 3 versions of java:

      double dbl = 0.00891396012251904;
      System.out.println("dbl=" + Double.toString(dbl));  // dbl=0.00891396012251904

The result string field 'pdecimal' displays -->> 0.00) <<--

You have not shown the code that displays the value in your posting.
Can you post the code that displays that value?

//for test plug 19549.3120187621 into 'principal'
//for test plug 60 into 'term'
//for test plug 333.33 into 'payment'
//with above values the double field 'guess' will contain 0.00891396012251904 after the computations

//****interest click button***********
    	 public void continueclick (View view)
    	 {
 
if (text.getText().length() == 0)
	    	    	{
	    				Toast.makeText(this, "Please enter a valid principal number",
	    						Toast.LENGTH_LONG).show();
	    				return;
 
	    			}
if (text3.getText().length() == 0)
						 {
							Toast.makeText(this, "Please enter a valid term number",
							Toast.LENGTH_LONG).show();
						return;
			    			}
if (text4.getText().length() == 0)
						 {
							Toast.makeText(this, "Please enter a valid payment number",
							Toast.LENGTH_LONG).show();
						return;
			    			}
 
//****************
double term = Float.parseFloat(text3.getText().toString());
double payment = Float.parseFloat(text4.getText().toString());
double principal = Float.parseFloat(text.getText().toString());
   double P = principal;
   double lowguess = .0001;
double n = term;
    double avgterm = (n / 12);
    double ncount = n;
    double compound = 0;
    char done = 'n';
    //---------------
    //n = number of months
    double temp = avgterm * lowguess;
    double temp1 = principal * temp; //1 month interest
    //principal * interest * 1 month = payment
    compound = 0;
    ncount = n;
    double guess = .000001;
    double toohi = .999;
    double toolo = .001;
    double pmt1 = 0;
    guess = .05;
    int savedcounter = 0;
    guess = guess / 12;
    while (done == 'n')
    {
        ncount = n;
        compound = 0;
        principal = P;
 
 
        double i = guess;
 
            temp = 1 + i;
            double temp2 = Math.pow(temp, n);
            temp1 = i * temp2;
            double temp3 = temp2 - 1;
            double temp4 = temp1 / temp3;
            double temp5 = P * temp4;
 
            pmt1 = temp5;
        temp4 = Math.abs(payment - pmt1);
 
        if (pmt1 == payment)
        {
            done = 'y';
        }
        if (temp4 < .1)
        {
            done = 'y';
        }
        if (done == 'n')
        {
            if (pmt1 > payment)
            {
                toohi = guess;
                temp = toohi - toolo;
                temp1 = temp / 2;
                guess = toohi - temp1;
                double perpayofpmt = payment / pmt1;
            }
            if (pmt1 < payment)
            {
                toolo = guess;
                temp = toohi - toolo;
                temp1 = temp / 2;
                guess = toolo + temp1;
                double perpmtofpay = pmt1 / payment;
 
            }
            int tempout = 25;
            if (savedcounter > tempout)
            {
 
                if (pmt1 < payment)
                {
                    guess = guess * tempout;
                  //  temp5 = guess * perpmtofpay;
                  //  guess = guess + temp5;
                }
                if (pmt1 > payment)
                {
                    guess = guess / tempout;
                   // temp5 = guess * perpayofpmt;
                   // guess = guess - temp5;
                }
                tempout = tempout + 25;
 
            }
            savedcounter++;
 
 
            if (savedcounter > 5000)
            {
 
                done = 'y';
            }
        } //end if done bracket
    } //done loop
 
 
    guess = guess * 12;
    String pdecimal = Double.toString(guess);
 
 
    pdecimal = pdecimal.replace("*","99999");
    pdecimal = pdecimal.replace(")","89139");
 
text2.setText(pdecimal);
 
text5.setText(String.valueOf(savedcounter));
text6.setText(String.valueOf(pmt1));
 
if (savedcounter == 5001)
	    	    	{
	Toast.makeText
	(this, "PAYMENT IS OFF TOO MUCH...TRY TO GUESS BETTER PAYMENT...SEE CLOSEST PAYMENT WINDOW",
	Toast.LENGTH_LONG).show();
	    	    	}
 
    	 }

What do we need to do with the code you posted to get the result that this thread is talking about?

The posted code isn't in a class with a main() method so what do we do with it???

You need to create code that generates the bad results for you.
Then post that same exact code so we can see if we get the problem.

pdecimal = pdecimal.replace("*","99999");
    pdecimal = pdecimal.replace(")","89139");

the above 2 instructions only serve to replace the spurious ")" and "*".

Originally Posted by Norm

Did they say which version of java?
This works for me on 3 versions of java:

      double dbl = 0.00891396012251904;
      System.out.println("dbl=" + Double.toString(dbl));  // dbl=0.00891396012251904

***my reply***
i didn't make it clear...ECLIPSE people just assumed it was a java problem but not a known java problem.
...thanks for your replies...

If your not going to post code (a SSCCE) then you might as well close this thread.
Nothing can be done without code that shows the problem.

to reproduce the error you'd have to...
1. be in 'ECLIPSE Version: 3.4.2 Build id: M20090211-1700' within an ANDROID cellphone project.
2. have a text field like this...
<EditText android:layout_height="wrap_content"
android:layout_width="match_parent"
android:textSize = "15sp"
android:inputType="numberDecimal|numberSigned"
android:enabled="true" android:id="@+id/editText2"
android:text=" ">
</EditText>

3. have a double contaning 0.00891396012251904.
4. execute...
String pdecimal = Double.toString(guess); where 'guess' is the double in item 3 above.
5. execute...
text2.setText(pdecimal); where 'text2' is item 2 above.
doing the above will result in 'text2' window showing...
0.00)
...in the CELLPHONE EMULATOR WINDOW.

i have a java applet with same code that displays 0.00891396012251904 properly in the applet window.

That environment has a lot in it beside Java. How about a problem with Android?

Originally Posted by Norm

That environment has a lot in it beside Java. How about a problem with Android?

duh...try to tell the ECLIPSE and ANDROID people that.

What is output if you write the String to the log?
Or any other debug output screen?

Originally Posted by Norm

What is output if you write the String to the log?
Or any other debug output screen?

the problem was with ECLIPSE GANAMEDE. ECLIPSE GALELIO (GALALEO?) works ok. it is a blasted BUG in ECLIPSE GANAMEDE!
...thanks for your interst...i appreciate it.

Originally Posted by Junky

It works perfectly fine for me. Post a SSCCE.

the problem was with ECLIPSE GANAMEDE. ECLIPSE GALELIO (GALALEO?) works ok. it is a blasted BUG in ECLIPSE GANAMEDE!
...thanks for your interst...i appreciate it.

Glad you were able to isolate it.
Now we can all have complete faith in Oracle's java again.