Java Coding Conventions (from old wiki)

[chenlica]

From https://github.com/apache/texera/wiki/Java-Coding-Conventions (may be dangling)

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Author: Zuozhi Wang

This document specifies the coding conventions in Texera project.

1. Use spaces instead of tabs. Configure your IDE or text editor to use 4 spaces instead of tabs.
   In Eclipse
   In IntelliJ, uncheck use tab character.

The reason is that Github shows tab as 8 spaces, thus leading to inconsistency of indentations. Different people may have different configurations, which may mess up the space / tab and show a lot of changes in git diff.

2. Use camel case, e.g. SampleClass, sampleVariable
   For constants, use all upper case with underscores, e.g. SAMPLE_CONSTANT

3. Use the following indentation style

/**
 * Don't forget to write JavaDoc comments.
 */
public void sampleFunction(int x) {
    // leave one space before bracket {
    if (x > 0) { 
        doSomething();
    } else {
        doSomethingElse();
    }
}