Threaded Java - Java - page 868

just reads from the console terminal, and the main thread simply waits for it. When I run the
program, it looks like this:

darwinsys.com$ java threads.Join
Starting
Joining
Reading
hello from standard input # waits indefinitely for me to type this line
Thread Finished.
Main Finished.
darwinsys.com$

Example 22-9 lists the code for the join( ) demo.

Example 22-9. Join.java
public

public class class Join Join {

public public static void main ( String [] args ) {

Thread t = new

static void

new Thread () {

public public void void run () {

System . out . println ( "Reading" );
try

try {
System . in . read ();
} catch catch ( java . io . IOException ex ) {

System . err . println ( ex );

}
System . out . println ( "Thread Finished." );

}

};
System . out . println ( "Starting" );
t . start ();
System . out . println ( "Joining" );
try

try {
t . join ();
} catch catch ( InterruptedException ex ) {

// should not happen:
System . out . println ( "Who dares interrupt my sleep?" );

}
System . out . println ( "Main Finished." );

}

}

As you can see, it uses an inner class Runnable (see Running Code in a Different Thread ) in
Thread t to be runnable.