<p>As I have mentioned in other posts, I taught myself Java after having previous knowledge of C. Java and C share many, many similarities; therefore, I was able to learn Java in a matter of 10 weeks without any trouble at all. I am not completely familiar with the programming languages you listed above, but, as long as you have some experience with the basic concepts of programming in general (for loops, if blocks, etc…) I would say that you will have a much easier time learning Java for the AP Test. Now, getting a 5 on the AP tests does not just require a good knowledge of programming in Java. You have to be good an analyzing code segments and predicting the result of executing code segments:</p>
<p>For example,</p>
<p>Predict the output of executing the following code segment.</p>
<p>for(int x=0;x<100;x+=10) {
System.out.println(x + " ");
}</p>
<p>Getting good at the multiple choice requires practice, along with the FRQs. I would say it is possible to learn all of the information you need at this point.</p>