problem in thread program execution

[chandan kuchipudi]

hi all.....i've got a problem while executing this thread based program.....actually my intension is to print 1 to 10 numbers with the gap of 1 second.....please look into that and help me ....


///thread demo.java
class Thread1 extends Thread
{
public void run()
{
try
{
for (int i=1; i<=10;i++ )
{
System.out.println("your time starts now="+i);
Thread.sleep(1000);
}catch (InterruptedException ie)
{
System.out.println("error in thread execution");
}
}//run ()
}//thread1
class ThreadDemo
{
public static void main(String[]args)
{
Thread1 t=new Thread1();
t.start();
}
}//ThreadDemo


when i execute this prog , it is showing that error : line no.17

illegal static declaration in inner class Thread1.ThreadDemo

public static void main (String[]args)

modifier 'static ' is only allowed in constant variable declaration




please help ...

[Martin Vajsar]

As you can see, the code doesn't even compile; the problem has therefore nothing to do with threads. I'll move it to a better forum.

You can't declare anything as static in inner classes. Declare the main method directly in Thread1; you don't need the (inner) ThreadDemo class at all.

[chandan kuchipudi]

thank you for help ....after writing the main method in Thread1 class , still it is showing an error like this ..

error line no:12 'catch' without 'try'

line no 6: try without catch ...


and Bear Bibeault......i've changed the name ....thank you for your concern...

[anieruddha gaikwad]

Just change formatting & corrected typing errors. Does this what you want?

public class Thread1 extends Thread
{ 
  public void run() 
  { 
    try 
    { 
      for (int i=1; i<=10;i++ ) 
      { 
        System.out.println("your time starts now="+i); 
        Thread.sleep(1000); 
      }
    }catch (InterruptedException ie) 
    { 
      System.out.println("error in thread execution"); 
    } 
  }
}

class ThreadDemo 
{ 
  public static void main(String[]args) 
  { 
    Thread1 t=new Thread1(); 
    t.start(); 
  } 
}

[Campbell Ritchie]

Your new version compiles and runs without problem. You have obviously corrected the error.