Basic Java Notes

[Juggles]

These are the notes I wrote down when I was first learning java.
These are just the basics and should help set a foundation for you. 

It is crucial to understand these basics because they are used in every script.

 

I took these notes while doing Code Academy

 

 

** On the Order of Operation part, it is best to use parenthesis instead of following the guidelines because it can get confusing. 

Edited November 23, 2016 by Juggles

[Orange]

just go ahead and paste all of ur notes

[Alek]

Most programmers avoid order of operations by forcing parenthesis to ensure the order is correct. Typical mistake:

bool1 || bool2 && bool3

 

Some people might think it's evaluating (bool1 || bool2) && bool3 when it's really bool1 || (bool2 && bool3).

[Juggles]

Most programmers avoid order of operations by forcing parenthesis to ensure the order is correct. Typical mistake:

bool1 || bool2 && bool3

Some people might think it's evaluating (bool1 || bool2) && bool3 when it's really bool1 || (bool2 && bool3).

Yeah I agree. I'll edit the notes and post that later. When I was first learning how to script, I didn't fully understand how to do order of operation so using the parenthesis is a better way to do it. 

Edited November 22, 2016 by Juggles

[Bamboozled]

Glad you're sharing your knowledge with the community. Never goes unnoticed

[Satire]

This should indeed help beginners.  I had a sheet similar to this when I was learning c++.  It is very helpful! 

[DrDu]

how do u type or on a normal keyboard?

[WindPower]

On 1/23/2017 at 10:38 PM, DrDu said:

how do u type or on a normal keyboard?

On a "regular" keyboard, directly above the enter button: Hold shift + \ = |. Or = ||.

[gerfz]

helped alot!

[Tempest]

Is learning the fundamentals enough to start scripting? I have already learnt this and some basic GUI too.

[MalteseFalcon]

Thanks very much! looks helpful

[Juggles]

49 minutes ago, MalteseFalcon said:

Thanks very much! looks helpful

No problem Hope it helps 

[IamBot]

Being a student, I know those notes are sure going to help beginners.

[Swizzbeat]

Expanding upon what @Alek mentioned short circuit operators are fantastic for making code optimizations in conditions that depend on or's. Do your lightweight checks first (boolean state, etc.) so if any evaluate to true the condition will terminate early and not have to do any of your more robust calculations.

They're also a great place to chain calls together vs nested if's. Example RuneScape script case case:

!isPlayerInCombat() && playerHealth() > 20 && ((distanceToTarget > 10 && stepTowardsTarget) || attackTarget)

would be a perfect one statement generic method for attacking an entity that could be called each script poll.

[Antonio Kala]

replying to this so I can find the thread later