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 &nbsp; &nbsp;I've inherited a .ear application that was written using Java 2 Platform Std. Ed. v1.4.2. I need to modify it, and any sample code I'm finding is in Java 5 or 6. If I upgrade my Java version, can I feel comfortable that my application will still run? Or should I stick with my archaic version of Java to be safe? <br />
&nbsp; &nbsp; &nbsp; &nbsp; I'm a Java newbie, so any advice will be appreciated.<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Thanks!<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;oneDayAtaTime
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    I've inherited a .ear application that was written using Java 2 Platform Std. Ed. v1.4.2. I need to modify it, and any sample code I'm finding is in Java 5 or 6. If I upgrade my Java version, can I feel comfortable that my application will still run? Or should I stick with my archaic version of Java to be safe? 
        I'm a Java newbie, so any advice will be appreciated.
                                   Thanks!
                                             oneDayAtaTime

Java 6 Backward Compatible with Java 1.4?

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.