Can not install JAVA. Keep getting this error: Main Class: com.sun.servicetag.installer and that it can not find the JAVA virtual machine... Help!

SOURCE: Can't update Java 1.1.4. Can't view Java or Suns web sites

Use JavaRA:

http://raproducts.org/

Works great for getting rid of older Java installs. Has links to the Java update pages inside the program too.

Also, try installing Firefox and use it to download Java installer.

SOURCE: Java Vitual Machine Launcher prompts this message

You need to compile the .java file you have, and run the .class file that is produced.
Open up command prompt, go to your working directory. If your file was called Hello.java: In command prompt type "javac Hello.java". Now, in the working directory, you will see a new file, Hello.class. Run that file by "java Hello.class". Hope this helps!
Thanks for using FixYa

SOURCE: java

Did your main page has a same name as java?
Or
You are running in cmd then
javac A.java // this will compile
run like:::::
java A
Any other query then tell me..........