Danchis holm i go through ur single guide thread program number 3.

[giribabu venugopal]

class A extends Thread {
private int i;
public void run() {i = 1;}
public static void main(String[] args) {
A a = new A();
a.start();
System.out.print(a.i);
}}


//i got only 1 as answers when the possiblity to get 0.when it will happen?
//where to test?
[ June 30, 2004: Message edited by: giribabu venugopal ]

[giribabu venugopal]

class Go extends Thread {
public void run() {
try {sleep(10000);} catch (InterruptedException ie){}
}
public static void main(String[] args) {
Go a1 = new Go();
long startTime = System.currentTimeMillis();
a1.start();
System.out.print(System.currentTimeMillis() - startTime);
}}

//3.program i didn't answer.
out put is:in as jdk1.4.2
---------- Compile ----------
javac: invalid flag: Go
Usage: javac <options> <source files>
where possible options include:
-g Generate all debugging info
-g:none Generate no debugging info
-g:{lines,vars,source} Generate only some debugging info
-nowarn Generate no warnings
-verbose Output messages about what the compiler is doing
-deprecation Output source locations where deprecated APIs are used
-classpath <path> Specify where to find user class files
-sourcepath <path> Specify where to find input source files
-bootclasspath <path> Override location of bootstrap class files
-extdirs <dirs> Override location of installed extensions
-d <directory> Specify where to place generated class files
-encoding <encoding> Specify character encoding used by source files
-source <release> Provide source compatibility with specified release
-target <release> Generate class files for specific VM version
-help Print a synopsis of standard options

Normal Termination
Output completed (0 sec consumed).

[Chris Allen]

Tha call to the thread start method only puts the thread into a runnable state, it does not guarantee that it will start at that exact moment. It is possible that the next line executes before the thread starts in which case, the variable i has not been assigned the value of 1 yet. In my test, it did print a zero value.

[Dan Chisholm]

Thank you for your reply, Chris.

[giribabu venugopal]

no danchis holm


am getting compiler error for thirs program which is given below?

[Dan Chisholm]

giribabu,

There is no problem with the program. It should compile and run without error. Based on the error message from the compiler, it appears that you typed the following at the command line.

javac Go

If your program is contained in a file named Go.java, then you should compile it using the following command line.

javac Go.java