title: Mac jre/jdk 1.7 not working
body: <p>Bear with me because I don't know all of the technical term but here is my problem: I am trying to use code from another person which I downloaded onto my computer (Mac OS X Lion). It is from a computer that uses JRE 1.7 and when I try to run it on my version of java (JRE 1.6) it throws errors. </p>
  
  <p>I have downloaded and installed JRE 1.7 multiple times and when I try to add it from my "installed JREs" menu (System/Library/Java/JavaVirtualMachines) it is not even there. </p>
  
  <p>^Might have worded this badly but basically I am having trouble adding JRE 1.7 as my current java runtime environment. </p>
  
  <p>As a last resort I would just like to know how I can use 1.7 code in 1.6 (copying it directly in is still giving errors). </p>