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1. Top results related to how many colors are in rgb code?

   • How many combinations are there in RGB without editing blue component values?

     Top Answer

     Answered Jan 20, 2019 · 2 votes

     RGB usually allows a value between 0 and 255 for each colour.

     Normally, that means 2563 = 16,777,216 or about 16.8 million colour combinations.

     Setting Blue to zero gives you no choice there, so the combinations become 2562 = 65,536 or about 65 and a half thousand colour combination.

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     1/5

   • In RGB model how many distinct hues are available?

     Top Answer

     Answered Nov 24, 2012 · 10 votes

     In HSV, the hue is defined as

     H = atan2( sqrt(3)*(G-B), 2R-G-B )-

     (link). In each of the six sectors (R-Y, Y-G ...), there are equally many hues. Additionally, there are six hues at the boundary between the regions. So, 6 + 6 * huesRY.

     In the red-yellow sector, R > G > B, so both arguments to atan2 are positive.

     count sqrt(3) * (G-B) / (2R-G-B)=count (G-B) / (2R-G-B)=count (G-B) / ((G-B) + (2R-2G))-

     since we can apply any linear transformation to the sets of [x,y] and not change the count of its ratios, x / (x+2y) == x / y

     =count (G-B) / (R-G)-

     if we subtract the same value from all R,G,B, the ratio does not change, so assume B=0

     =count G / (R-G)=count G / R-

     so, there are six times as many hues as there are ratios between two positive integers that are both below 2^8 (assuming 8 bits per channel), and six more. There are as many ratios as there are pairs of coprime positive integers. The number of positive integers below n that are coprime with n is called the Euler's totient function. OEIS lists its partial sums. There are exactly 19948 pairs of coprime positive integers below 256.

     6 * 19948 + 6 = 119 694

     There are exactly 119 694 different hues in the HSV model that correspond to a color in the 8-bit RGB model. Note that they are not spaced evenly.

     If 8 bits per channel are used in the HSV model, then there are less colors than in the RGB model with 8 bits per channel simply because some HSV triples map to the same color while every RGB triple defines a different color.

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     2/5

   • how many threads are created in this code?

     Top Answer

     Answered Mar 17, 2014 · 2 votes

     Executors.newFixedThreadPool(5) creates 5 threads in the pool, and then in the loop another 100 threads are created. Is this understanding right? Then the 5 threads in the pool will execute each thread in the queue of 100 worker thread.

     This is not correct. The fixed-size thread pool executor will create 5 worker threads. Your 100 Runnables are all added to a queue that these 5 threads are pulling from. So only 5 of your Runnables are executing at any given time. There are 5 threads (plus the main thread, and possibly the EDT if you're using Swing, and of course any other unrelated threads that you've explicitly created).

     I had thought only 5 threads are created, but each Runnable is also a thread.

     A Runnable is not a thread. A Runnable, as its name implies, is just something that can be run. In the case of the fixed-size thread pool, it is being run by one of the threads in the pool. From the documentation for Runnable

     (emphasis mine):

     The Runnable interface should be implemented by any class whose instances are intended to be executed by a thread.

     I believe the source of your confusion may be that your Runnables are innapropriately named WorkerThread, even though they are not threads. Additionally, you may be confused by the fact that Thread also implements Runnable. In fact, this literally means that a Thread is a Runnable, not that a Runnable is a Thread -- and a Thread isn't even a thread until it's started.

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     3/5

   • how many objects are created in the following code?

     Top Answer

     Answered Nov 10, 2009 · 13 votes

     Should be 2. The main function is static so it doesn't need an object.

     ClassA a is an object and ClassB b is an object

     EDIT: ClassB doesn't consist of two objects because extends is an is-a relationship and not a has-a relationship. (ta mik)

     EDIT: There is also the String[] object that is created by the runtime system, and potentially any number of string objects place within that array. I am purposefully ignoring these but acknowledge their possible existence. (ta diveshpremdeep and Adam Goode)

     FINAL EDIT: In order to determine how many objects are created (by the program, not the runtime system) you can use the javap program on the commandline like so (if test.java contains your example)

     $ javac test.java$ javap -c ClassB-

     output:

     Compiled from "test.java"class ClassB extends ClassA{ClassB(); Code: 0: aload_0 1: invokespecial #1; //Method ClassA."<init>":()V 4: return-public static void main(java.lang.String[]); Code: 0: new #2; //class ClassA 3: dup 4: invokespecial #1; //Method ClassA."<init>":()V 7: astore_1 8: new #3; //class ClassB 11: dup 12: invokespecial #4; //Method "<init>":()V 15: astore_2 16: return-}-

     As you can see, there are only two bits of bytecode that are new (which creates objects I assume). One for class ClassA and the other for class ClassB. You can note that the invokespecial command is invoked afterwards to call the constructor, and also how class ClassA's constructor is called from class ClassB's constructor, but no new object is created inside the constructor (it is the default empty constructor).

     calling javap -c ClassA shows an equally boring constructor which invokes the constructor for Object.

     In summary: It is the new bytecode which creates objects on the heap, not the invokespecial which merely fills in the details of the memory allocated by the new bytecode.

     Other Answers

     Answered Nov 10, 2009 · 3 votes

     3 constructors being called to create 2 objects.

     Other Answers

     Answered Nov 10, 2009 · 3 votes

     If you mean objects inside the main method block, then 2. This can be verified for example with a Java heap dump and the following code extension:

     class ClassA { void h() { }}-class ClassB extends ClassA{ public static void main(String[] args) throws Exception { System.in.read(); main1(args); System.in.read(); }- public static void main1(String[] args){ ClassA a = new ClassA(); ClassB b = new ClassB(); }}-

     So:

     • Compile the class and run it. The program execution stops at System.in.read().
     • Find out the process id.
     • ["Run jmap -dump:format=b,file=snapshot1.jmap PROCESS_ID ",""]
     • Hit any key in the console to continue execution.
     • ["Run jmap -dump:format=b,file=snapshot2.jmap PROCESS_ID ",""]
     • Hit any key again to finish the program.

     After that, you get two Java heap dump snapshots which you can compare.

     I got the following values (with Java 1.6.0_15, OSX):

     • snapshot1.jmap: 17584 objects
     • snapshot1.jmap: 17586 objects

     The difference is 2, which is also the number of created objects.

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     4/5

   • How many line of code are in a program? (I know this is kind of vauge and depends but...)

     Top Answer

     Answered Jul 13, 2011 · 5 votes

     Code length depends completely on the type of the application you want to design. It also depends on the language of choice. A program written in c will likely be significantly longer than say code in python.

     It's never to late to learn!

     Check all answers on Stack Overflow

     5/5

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2. www.rapidtables.com › web › colorRGB Color Codes Chart - RapidTables.com

   www.rapidtables.com › web › color

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   The red, green and blue use 8 bits each, which have integer values from 0 to 255. This makes 256*256*256=16777216 possible colors. RGB ≡ Red, Green, Blue. Each pixel in the LED monitor displays colors this way, by combination of red, green and blue LEDs (light emitting diodes).

3. maxtables.com › web › colorRGB Color Codes Chart - maxtables.com

   maxtables.com › web › color

   • Cached

   Dive into our comprehensive RGB Color Codes Chart! Find the perfect color code for your design project and explore the world of digital hues. Ideal for web designers and creatives.

4. www.w3schools.com › colors › colors_rgbColors RGB and RGBA - W3Schools

   www.w3schools.com › colors › colors_rgb

   • Cached

   RGB Colors. RGB color values are supported in all browsers. An RGB color value is specified with: rgb(red, green, blue) Each parameter (red, green, and blue) defines the intensity of the color with a value between 0 and 255.

   Code sample

   div {

     background-color: rgb(0, 191, 255);

     color: rgb(255, 255, 255);

   }

   </style>...

   See more on w3schools

5. www.colorsexplained.com › rgb-color-modelRGB Color Model Explained (2024) • Colors Explained

   www.colorsexplained.com › rgb-color-model

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   Jul 14, 2022 · Each has RGB color values from 0 to 255, making millions of colors — to be precise, 16,777,216 possible colors. In graphic design, each color value is represented by HEX numbers, which are formed by numbers and letters to represent values between 0-9 (numbers) and 10-16 (letters from A to F).

6. orangeable.com › html › color-codesHTML Color Codes: Hexadecimal & RGB - Orangeable

   orangeable.com › html › color-codes

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   Dec 4, 2023 · RGB Color Codes. RGB color codes are defined a bit differently using three parameters in this format: rgb ( red, green, blue) Each parameter above defines the intensity of the color using integers between 0 and 255, where 0 is the complete absence of color and 255 is the full presence of color.

7. html-color.codesHTML Color Codes

   html-color.codes

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   Common color codes are in the forms of: a keyword name, a hexadecimal value, a RGB (red, green, blue) triplet, or a HSL (hue, saturation, lightness) triplet. Different values allow for 16,777,216 potential colors to be chosen.

8. People also ask

   How many colors are in RGB code?

   • RGB code has 24 bits format (bits 0..23): Basic colors: RGB Color System The RGB color space blends Red, Green, and Blue to create various shades. Value Range Each of these colors has a value between 0 to 255. This results in over 16 million potential colors. RGB Defined Simply put, RGB stands for Red, Green, Blue. LED Display Mechanics

   RGB Color Codes Chart

   maxtables.com/web/color/rgb-color.html

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   What is a RGB color value?

   • An RGB color value is specified with: rgb ( red, green, blue) Each parameter (red, green, and blue) defines the intensity of the color with a value between 0 and 255. For example, rgb (255, 0, 0) is displayed as red, because red is set to its highest value (255), and the other two (green and blue) are set to 0.

   Colors RGB and RGBA - W3Schools

   www.w3schools.com/colors/colors_rgb.asp

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   What is RGB (red green & blue)?

   • rgb ( red, green, blue) Each parameter above defines the intensity of the color using integers between 0 and 255, where 0 is the complete absence of color and 255 is the full presence of color. With that in mind, the colors red, green, and blue can be defined using the following color codes:

   HTML Color Codes: Hexadecimal & RGB - Orangeable

   orangeable.com/html/color-codes

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   What does RGB mean in HTML?

   • RGB is a color standard formed by the superimposition of the three primary colors: Red (R), Green (G), and Blue (B). In web pages, RGB values are generally represented by hexadecimal codes, serving as a CSS attribute to change the color of HTML elements.

   RGB Color Chart and Hexadecimal Color Codes - Codeeeee Online Tools

   www.codeeeee.com/en/color/rgb.html

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9. www.codeeeee.com › en › colorRGB Color Chart and Hexadecimal Color Codes - Codeeeee Online ...

   www.codeeeee.com › en › color

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   RGB is a color standard formed by the superimposition of the three primary colors: Red (R), Green (G), and Blue (B). In web pages, RGB values are generally represented by hexadecimal codes, serving as a CSS attribute to change the color of HTML elements.