Stack Overflow
Stack Overflow

Questions tagged [final]

final is a common keyword specifying that the reference declared as final cannot be modified once it is initialized. In Java the keyword final is roughly equivalent to const in C++. In C++ the final keyword allows you to declare a virtual method, override it N times and then mandate that 'this can no longer be overridden'.

Refer to how the final keyword is used in different programing languages

1662 questions
0
votes
3 answers

Android final variable is no variable?

I have a void like this: public static void checkStateSignal(final int counter) { for (int l = 0; l < counter; l += 10) { if (counter - l < 9) { Handler handler = new Handler(); handler.postDelayed(new Runnable()…
dec0yable
  • 87
  • 13
0
votes
2 answers

Storing Seekbar value but keep getting that I have to use final

"Variable is accessed within inner class Needs to be declared final" is the the error I get at first. So I change it to final. Once I change it to final I get a different error saying "Cannot assign value to final variable". I'm kind of stuck here…
Carlitos
  • 419
  • 4
  • 20
0
votes
3 answers

How can I solve this variable issue?

I know there are some questions like this , but none of the answers could solve my problem. So I'm gonna ask myself. How can I solve this problem? Sorry for don't specify more, I'm starting coding
Arthur Moresche
  • 43
  • 1
0
votes
2 answers

Why a constructor cannot be final?

As we all know constructor cannot be overridden. So when we declare a constructor as final, why does it give compile time error? As final keyword will also let a constructor not to override.
karan bansal
  • 21
  • 2
0
votes
1 answer

Java: Meaning of catch (final SomeException e) ? Is Final Keyword makes any sense here?

Here is Some Code written by some of my Senior team member. private void getYourObjectByID(final long someId) { TypedQuery v_objQuery; try { //Some Code JPA Read Write To Database …
Vikrant Kashyap
  • 6,398
  • 3
  • 32
  • 52
0
votes
1 answer

error: illegal start expression. when placing a final string` statement in the `public static void main` method

I have just started learning Java a few weeks ago. I'm trying to learn the key word final in java language. I wrote a final string statement in the public static void main method. However, the IDE is displaying the error: illegal start expression.…
Thor
  • 9,638
  • 15
  • 62
  • 137
0
votes
0 answers

How can I access to all final field in a class with for

I want to use for and access all final field (public) in a class. ex: String finalFieldOfMath=""; for (String s: Math) finalFieldOfMath+= s+", "; thanks
Malus Jan
  • 1,860
  • 2
  • 22
  • 26
0
votes
1 answer

Blank Final Local vs Blank Final Field

Why does not initializing a local final variable compile? This behavior seems to contrast final fields where not initializing a gives a compilation error. class Test { final Test test1; // doesn't compile public Test(){ final Test…
flakes
  • 21,558
  • 8
  • 41
  • 88
0
votes
1 answer

LibGDX - Singleton class with static final causes TextureRegion failure?

I have a class that looks something like this: public class MyResources { public static final Size textureSize = new Size(72, 96); public Texture texture; public TextureRegion textureRegion; private static BGRResources instance =…
gkimsey
  • 517
  • 6
  • 13
0
votes
2 answers

Return last row from a Table mysql Error

Trying to get last row from a database, but when the table is new and no row is entered, it return error. $lastrow="select ID from $sectionN order by ID desc limit 1"; $lastrow=mysql_query($lastrow); echo $lastrow; $lastrow=mysql_result($lastrow,0)…
AK47
  • 11
  • 5
0
votes
3 answers

Core Java What is Wrong with this Simple Syntax

I have a code like this. public void test() { final boolean passDay = true; final int status; //if the right side takes place means i need status value below and is set //if only the left side is takes place i dont care about status…
chiperortiz
  • 4,751
  • 9
  • 45
  • 79
0
votes
3 answers

Java Hash Map Performance

protected static final Map m = new HashMap(); I have a question in regards to performance of using the above. I am creating a 2D Tile Engine for a simple RPG game. I am using the hash map above to store the name of a tile along with…
Logiquol
  • 13
  • 5
0
votes
2 answers

JUnit behaviour with static final variable of usual Java class

Assuming, i want use a predefined static final list instance(s) as a holder of some "configuration" for a test. This is a list, so i use static {} block where some values are added to the instances: public class Config{ ... public static…
J J
  • 146
  • 2
  • 11
0
votes
2 answers

Can't access a variable within inner class, but I need to change the variable, so I can't declare it final either

View.OnClickListener handleOnClick(ToggleButton mButton, boolean mBoolean) { return new View.OnClickListener() { public void onClick(View v) { mBoolean = !mBoolean; updateUi(mButton, mBoolean); } …
Liang Cui
  • 33
  • 5
0
votes
0 answers

Final test for Statistical Significance Bird aggression scores

Introduction I'm doing a small pilot research in bird aggression in a colonising frontier regarding their breeding ground. Background The study was conducted over multiple years, presenting the colonising (south) and settled (north) collared…
Salvuryc
  • 1
  • 1
1 2 3
…
99 100