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Code Review Stack Exchange is a question and answer site for peer programmer code reviews. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. Write a Java class jet2 new planes java Plane". Object-property names and types are given and compulsory. Write the according constructor and getter- setter-method.

Check within the constructor the given values for being valid. Further requirements concerning the implementation of the methods I have written into my code as comments.

So therefore: I would appreciate your comments and hints concerning my implementation of the described jft2. Consider the jet builder pattern ". As I started to pass in arguments to the constructor, jet2 new planes java was hard to keep the semantics right.

The builder pattern has only one assertion: It doesn't matter how many arguments you passed in, it will always build a consistent object. Return-statements are structural identical to goto-statements although they are a formalized version. What all goto-alike-statements return, continue, nwe hav in common: They are not refactoring-stable. They hinder you to apply reforings like "extract method". If you have jet2 new planes java insert a new case in an algorithm that uses break, continue and return-statements you may have to overthink the whole algorithm so that your change will not break it.

These return values may be sufficient for trivial cases in trivial environments where less exceptional cases occur. In complex environment a method execution may fail due to several reasons.

A connection to the server was lost, an inconsistency on the database-side was recognized, the execution failed because of security reasons There modern languages introduce a concept for jet2 new planes java cases: Exceptions.

I suggest to not publish true or false. I suggest to have either jaa return value or the new value of the loadWeight. Exceptional cases I would handle with the concepts of exceptions.

I would expect a signature like this:. The OverloadedException may not be signature relevant RuntimeException but it expresses the intention of the method.

If you want to make comments it is an indicator for that your code itself may not be clear enough. I intentionally said "avoid comments" but not "do not comment anything". First think about the things that will be compiled and run to be as clear as possible. Then if you think it's neccessary to comment then comment. Comments have to be maintained separately.

They are "uncompiled" code and cannot be be put under test. So they may lie if they diverge from your code semantics. In your comment you mentioned that "liter" may be negative. This is an allowed value but your method signature says "fillUp". So one of them is lying.

You now have jet2 new planes java possibilities:. The best "comment" for a "procedure", "function", "method" is a set of tests that show the usage of it so other developers can see, how your code will work in different situations.

Instead of testing your object in a main-scope I suggest to make You should decide which coverage you want to aim. I prefer condition coverage over statement coverage because it forces you to keep your methods small. If you have long methods with several conditions your test case count may explode. As you see in the test cases, I have comments. They describe the business rules you want to enforce. Not only can maxWeight and the other jet2 new planes java invalidly be negative, it can also be exceeded by the the loadWeight.

Planes travel large distances, possibly reaching countries far far away, where people might use the imperial system or even jet2 new planes java, ;lanes arcane ones.

You have an implicit contract of what units the values should be given in. That contract is not clearly communicated. Are the weights in metric tonnes? The fuel in gallons? Imperial units were used for the sections designed by the British team jet2 new planes java metric units for those designed by the French team.

And even within the metric system for example, do you use kg, t, g, … for weight? You have to clearly document Jet2 New Planes Update what units you are expecting. Ideally, you'd use some built-in mechanism jet2 new planes java work with units. Basically speaking, the dimension of a variable is specified and jaga the conversion of units for that dimension. Sadly, the proposal linked to above was withdrawn, because nobody cared to do it.

I guess there are other libraries in place that do this. It's out of scope for a beginner program and nobody expects you to use a system like this. This paragraph is just FYI. Parsing the ternary operator is a mava harder to read.

This might be personal preference. There's also a blurry line where simplifying code becomes obfuscation to cryptic one-liners. Jet2 new planes java be tempted jet2 new Jet2 New Planes Package planes java write everything in as little code as possible.

You ;lanes to draw that line for yourself. Even if you have some validity checks, you have to come up with a contract on how they are jet2 new planes java. What should happen if some invalid value is passed to your class? Maybe you want to throw new IllegalArgumentException "Negative weights aren't possible.

There is no clear jzva or wrong here. It's a matter of how you design your class. What's important is that you communicate whatever you do clearly. Even if you don't perform any validity checks, you should explain this to plxnes users of your class: " Hey there, if you pass nonsense to this class, it won't check for that and you have to live whatever garbage it produces as a result. In yours it's obviously not, because you were asked to do them.

This is a subjective one. When Jet2 New Planes 300 I read kerosinStorageI associate with that the size of the tank or container that the kerosene is stored in. In your code it is the actual amount of kerosene left in the plane. I suggest to change that name to just kerosene. Either make this method a setter or rename it to addKerosene or something like that.

Admittedly, this is more about code duplicationbut I could not resist completing plxnes trilogy. That's a bit misleading, because if you have setters for properties, you should perform the validity checks in the setters, not in the constructor. As you have it right now, you have duplicated code to limit the value of kerosinStorage. You do it once in the constructor:.

In your current code, you have some validity checks in the setter methods fillUp and loadbut they are not called in the constructor. Don't make your Class members private if you offer public getters and setters without any functional logic. Just make your members public.

This saves you 70 i. It makes your class more readable, the access of the variables less complicated and saves Bytecode. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a jet2 new planes java group. Create a free Team What is Teams? Learn more. Asked 4 years, 4 months ago. Active 1 year, 10 months ago. Viewed 4k times. Moreover are the following methods to implement: info load fillUp fly getTotalWeight getMaxReach Further requirements concerning the implementation of the methods I have jet2 new planes java into my code as comments.

Expect 1 liter Kerosin as 0. The parameter 'liter' can be a negative number. Doesn't have to be overfilled. Prevent planess negative number as value of the 'kerosinStorage' property! It passed that test but I'm still not sure about it.

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