java.lang.Object
- Torello.Java.C

```
public class C
extends java.lang.Object
```
A UNIX Terminal Color-Codes implementation for printing colored text to terminal.

This class is particularly usable if you are logged into the Google Cloud Server "Cloud Shell" interface for writing your Java Code. The instance of Bourne Again Shell that is provided allows these colors to display quite well. Generally these escape color codes ought to be usable by any UNIX-related terminal output. Only the oldest terminals still use only green.

IMPORTANT:
These colors to do not easily translate on a Windows, DOS or Apple Computer Terminal Output Display. If you load this Java-HTML package on a terminal or device that is not a UNIX system, this class will automatically default every one of these character strings to the empty, zero-length, string. This is to facilitate / guarantee that people who write UNIX-specific code will have their terminal-output displayed properly when their write-once, run-anywhere Java methods are run on non-UNIX platforms.

From StackOverFlow.com
How to print color in console using System.out.println?

How can I print color in console? I want to show data in colors when the processor sends data and in different colors when it receives data

ANSI Escape-Codes:
This is a Wikipedia Article that includes information about all Escape-Code Sequences:

ANSI escape code

Example:
```
import static Torello.Java.C.*;

// On a UNIX Terminal, this will print in color=red.
// On a non-UNIX terminal, these fields will evaluate to an empty-string, and the color-codes will
// be ignored.
//
// NOTE: Macintosh and MS-DOS do not read UNIX Color-Codes, without proper configuration...

System.out.println(RED + "This text is red!" + RESET);

// Also, if you wish to change the background color of the text, the following will work:
System.out.println(GREEN_BKGND + "This text has a green background but default text!" + RESET);
System.out.println(RED + "This text has red text but a default background!" + RESET);
System.out.println(GREEN_BKGND + C.RED + "This text has a green background and red text!" + RESET);
```
WINDOWS 10+ SUPPORT:
Beginning in Windows 10, ANSI Color Codes are supported. This decision was quickly upended, and now one "minor" Registry-Key is required to be set in order for the Command Prompt Window to show Color Codes. You simply need to open the Windows Registry Editor, and add a new Key to the 'Console' Section.

The Key to add is called VirtualTerminalLevel, and its type should be DWORD (set the value to 0001)

Below is what the menu option looks like in Windows 11, in order to set a Registry Key. Once this has been set, Windows now can also show colors at the Command-Prompt.

Below is some sample Java-HTML output that uses the standard ANSI Color Escape Sequences, rendered inside a typical Windows/DOS 'cmd.exe' Window
Hi-Lited Source-Code:
- View Here: Torello/Java/C.java
- Open New Browser-Tab: Torello/Java/C.java
File Size: 17,778 Bytes Line Count: 382 '\n' Characters Found
Stateless Class:
This class neither contains any program-state, nor can it be instantiated. The @StaticFunctional Annotation may also be called 'The Spaghetti Report'. Static-Functional classes are, essentially, C-Styled Files, without any constructors or non-static member fields. It is a concept very similar to the Java-Bean's @Stateless Annotation.
- 1 Constructor(s), 1 declared private, zero-argument constructor
- 7 Method(s), 7 declared static
- 44 Field(s), 44 declared static, 44 declared final

Field Summary

Foreground, Text Colors

Modifier and Type	Field
`static String`	`BLACK`
`static String`	`BLUE`
`static boolean`	`colorANSI`
`static String`	`CYAN`
`static String`	`GREEN`
`static String`	`PURPLE`
`static String`	`RED`
`static String`	`WHITE`
`static String`	`YELLOW`

Background Colors
Modifier and Type	Field
`static String`	`BLACK_BKGND`
`static String`	`BLUE_BKGND`
`static String`	`CYAN_BKGND`
`static String`	`GREEN_BKGND`
`static String`	`PURPLE_BKGND`
`static String`	`RED_BKGND`
`static String`	`WHITE_BKGND`
`static String`	`YELLOW_BKGND`

Bright, Bold Foreground & Text Colors
Modifier and Type	Field
`static String`	`BBLACK`
`static String`	`BBLUE`
`static String`	`BCYAN`
`static String`	`BGREEN`
`static String`	`BPURPLE`
`static String`	`BRED`
`static String`	`BWHITE`
`static String`	`BYELLOW`

Bright, Bold Background Colors
Modifier and Type	Field
`static String`	`BBLACK_BKGND`
`static String`	`BBLUE_BKGND`
`static String`	`BCYAN_BKGND`
`static String`	`BGREEN_BKGND`
`static String`	`BPURPLE_BKGND`
`static String`	`BRED_BKGND`
`static String`	`BWHITE_BKGND`
`static String`	`BYELLOW_BKGND`

Stop Color Sequence
Modifier and Type	Field
`static String`	`RESET`

Method Summary

Convert text w/ Color-Code Sequences to HTML w/ <SPAN> Tags

Modifier and Type	Method
`static String`	`toHTML(String text)`
`static String`	`toHTML(String text, boolean preFormat, boolean escapeHTMLElements, boolean useCSSClasses)`
`static String`	`toHTML(String text, boolean preFormat, boolean escapeHTMLElements, String titleStr)`

Get a CSS-CLASS Definition for a <SPAN>-Tag from a Color-Code Sequence
Modifier and Type	Method
`static String`	`span(String charCode)`

Get a CSS Inline STYLE-Attribute from a Color-Code Sequence
Modifier and Type	Method
`static String`	`spanInlineStyle(String charCode)`

Retrieve CSS CLASS Definitions File as a String
Modifier and Type	Method
`static String`	`getCSSDefinitions()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

colorANSI

🡇 ⇈ ⮫
```
public static final boolean colorANSI
```
If Java is not running on a UNIX machine, the terminal output that contains "color" will not function. If it does not, then the Shell color commands will default to empty, zero-length strings.

WINDOWS SUPPORT:
Since Windows Release 1909, which was the 2019 Version of Windows 10, MS-DOS Command Prompt Windows will also support ANSI Color-Code Escape Sequences;
Code:
Exact Field Declaration Expression:
```
 public static final boolean colorANSI;
```