The following line in your compile .bat file isn't correct:
path javac c:\Java_Programs\Meaty.java
"PATH" is an environment variable in Windows. You set it to tell Windows where to look for executable programs. The Java compiler (javac.exe) is a program, and you need to tell Windows that it's in the bin directory where you installed the JDK. Step 4 of the JDK installation instructions explains how you should set the PATH.
When this is set correctly, you can compile your Java source code with the following commands:
c: cd \Java_Programs javac Meaty.java
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