Deprecated - how to solve

Question

Hi, hope someone can help me:
I've currently written the following code:
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class FracDeci extends Applet
private static final int NUMFRACS=30;
private List fracList = new List(10, false);
TextField inputNum = new TextField(20);
public void init()
Panel p = new Panel();
p.setLayout(new BorderLayout());
p.add("North", inputNum);
p.add("South", fracList);
add(p);
public boolean handleEvent(Event e)
{   String sel;
if(e.target == inputNum && e.id==Event.KEY_PRESS)
String f = inputNum.getText();
if(e.key >= ' ') printCalc(f+(char)e.key);
else if(e.key==8 && f.length()> 0)
printCalc(f.substring(0,f.length()-1));
else printCalc(f);
return super.handleEvent(e);
private void printCalc(String f)
long [] numerator = new long[NUMFRACS];
long [] denominator = new long[NUMFRACS];
double d=0, d2=0, d3, d4 = -1;
long maxNumerator, L2;
try
{   d = d2 = Math.abs((new Double(f)).doubleValue());
}catch(NumberFormatException nfe)
{   fracList.clear();
return;
maxNumerator = getMaxNumerator((new Double(d)).toString());
numerator[0]=0; denominator[0]=1;
numerator[1]=1; denominator[1]=0;
fracList.clear();
for(int i=2; i<NUMFRACS; i++)
L2 = Math.round(d2);
numerator=L2*numerator[i-1] + numerator[i-2];
denominator[i]=L2*denominator[i-1] + denominator[i-2];
d3 = ((new Long(numerator[i])).doubleValue())
/((new Long(denominator[i])).doubleValue());
if(d3==d4) break;
if(Math.abs(numerator[i]) > maxNumerator) break;
fracList.addItem(
Math.abs(numerator[i])
+"/"+Math.abs(denominator[i])
+" = " + d3);
if(d3==d) break;
d4=d3;
d2 = 1/(d2-L2);
private long getMaxNumerator(String f)
String f2 = null;
int ixe = f.indexOf("E");
if(ixe==-1) ixe = f.indexOf("e");
if(ixe == -1) f2 = f;
else f2 = f.substring(0, ixe);
String digits = null;
int ix = f2.indexOf(".");
if(ix==-1) digits = f2;
else if(ix==0) digits = f2.substring(1, f2.length());
else if(ix<f2.length()) digits = f2.substring(0, ix) +
f2.substring(ix+1, f2.length());
long L;
try
{  L = (new Long(digits)).longValue();
}catch(NumberFormatException nfe)
{  return Long.MAX_VALUE;
int numDigits = ((new Long(L)).toString()).length();
long L2 = (long)((new Double(f)).doubleValue());
int numIntDigits = ((new Long(L2)).toString()).length();
if(L2==0) numIntDigits = 0;
int numDigitsPastDecimal = numDigits - numIntDigits;
for(int i=numDigitsPastDecimal; i>0 && L%2==0; i--) L/=2;
for(int i=numDigitsPastDecimal; i>0 && L%5==0; i--) L/=5;
return L;
but it keeps throwing up the following compilation error:
FracDeci.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
Trying to run the program nonetheless, I get:
Exception in thread "main" java.lang.NoSuchMethodError: main
How would I go about solving this? Also, how would I recompile with -deprecation for details?
Thanks in advance,
Alien463

Answer 1

The error you get when you run the program has nothing to do with you using a deprecated method.
If you read the error you will see that it is saying you don't have a main() method.
I assume when you say "run" you mean you're typing
java -cp . FracDeci
or something similar on a command line. This is correct if you were running an application and would mean you would need a main() method, but as this is an Applet you should use AppletViewer to run it.