How to set a string s color

Question

Does anyone know how I would set the color of a string that will be printed using System out  This is the code I currently have   System out println  TEXT THAT NEEDS TO BE A DIFFERENT COLOR

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I created an API called JCDP  former JPrinter  which stands for Java Colored Debug Printer  For Linux it uses the ANSI escape codes that WhiteFang mentioned  but abstracts them using words instead of codes which is much more intuitive  For Windows it actually includes the JAnsi library but creates an abstraction layer over it  maintaining the intuitive and simple interface created for Linux   This library is licensed under the MIT License so feel free to use it   Have a look at JCDP s github repository

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Strings don t encapsulate color information    Are you thinking of setting the color in a console or in the GUI

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public class colorString    public static void main  String   args         new colorString           public colorString          kFrame f   new kFrame        f setSize  400  400        f setVisible  true       private static class kFrame extends JFrame        Override     public void paint Graphics g                 super paint  g            Graphics2D g2d    Graphics2D g          g2d setColor  new Color 255  0  0             g2d drawString  red red red red red   100  100

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setColor    Assuming you use Graphics g in an AWT context   Please refer to the documentation for additional information

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for linux  bash  following code works for me   System out print   033 31mERROR   033 0m      the  033 31m will switch the color to red and  033 0m will switch it back to normal

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If you re printing to stdout  it depends on the terminal you re printing to  You can use ansi escape codes on xterms and other similar terminal emulators  Here s a bash code snippet that will print all 255 colors supported by xterm  putty and Konsole    for   i 0 i lt 256 i      do echo -en   e 38 5   i m  i     done   You can use these escape codes in any programming language  It s better to rely on a library that will decide which codes to use depending on architecture and the content of the TERM environment variable

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Console   See the Wikipedia page on ANSI escapes for the full collection of sequences  including the colors   But for one simple example  Printing in red  in Java  as you tagged this as Java  do   System out println   u001B31 1mhello world       The 3 indicates change color  the first 1 indicates red  green would be 2  and the second 1 indicates do it in  bright  mode    GUI   However  if you want to print to a GUI the easiest way is to use html   JEditorPane pane   new new JEditorPane    pane setText   lt html gt  lt font color   red   gt hello world  lt  font gt  lt  html gt       For more details on this sort of thing  see the Swing Tutorial  It is also possible by using styles in a JTextPane  Here is a helpful example of code to do this easily with a JTextPane  added from helpful comment    JTextArea is a single coloured Text component  as described here  It can only display in one color  You can set the color for the whole JTextArea like this   JTextArea area   new JTextArea  hello world    area setForeground Color red

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Google aparently has a library for this sort of thing  http   code google com p jlibs wiki AnsiColoring  There s also a Javaworld article on this which solves your problem  http   www javaworld com javaworld javaqa 2002-12 02-qa-1220-console html

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Download jansi-1 4 jar and Set classpath and Try This code 100  working    import org fusesource jansi AnsiConsole  import static org fusesource jansi Ansi    import static org fusesource jansi Ansi Color     public class SampleColour     public static void main String   args          AnsiConsole systemInstall         System out println ansi   fg RED  a  Hello World   reset         System out println  My Name is Raman         AnsiConsole systemUninstall

[java] How to set a string's color

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