This video tutorial outlines the steps to check which version of Java is running in your Windows 7 or XP computer. More specifically which version of Java Software Development Kit, that is JSDK and Java Runtime Environment JDK. This is very helpful since some times we may get an error of class version mismatch. This happens when the version of JDK and JRE differs. The Java Updates in the Windows operating system may update the Java automatically if it’s set that way and in the windows path JDK or JRE may be pointing to the older version. So this video will help in verifying the versions of JRE and JDK which is currently running on the system.
Checking Java Version in Windows XP or 7
Sometimes you may get an error that ‘java’ or ‘javac’ is not recognized as an internal or external command, in that case, please make sure that path and classpath to JAVA are set properly. The video below will help you in setting the Path and Classpath to Java.
Setting Path and Classpath for Java in Windows 7