SpaceVim/docs/layers/lang/java.md

---
title: "SpaceVim lang#java layer"
---

# [SpaceVim Layers:](https://spacevim.org/layers) lang#java


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* [Description](#description)
* [Layer Installation](#layer-installation)
* [Key bindings](#key-bindings)
    * [Java language specified key bindings](#java-language-specified-key-bindings)
        * [Maven](#maven)
    * [Problems buffer](#problems-buffer)
    * [Project buffer](#project-buffer)

<!-- vim-markdown-toc -->

## Description

This layer is for Java development.

## Layer Installation

To use this configuration layer, add `SPLayer 'lang#java'` to your custom configuration file.

## Key bindings

### Java language specified key bindings

**Import key bindings:**

Key Binding | Description
-----------| -----------
`F4` (Insert/Normal) | Import class under cursor
`SPC l I` | Import missing classes
`SPC l R` | Remove unused classes
`SPC l i` | smart import class under cursor
`<C-j>I` (Insert) | Import missing classes
`<C-j>R` (Insert) | Remove unused classes
`<C-j>i` (Insert) | smart import class under cursor


**Generate key bindings:**

Mode | Key Binding | Description
----- | ------| -----------
normal | `SPC l A` | generate accessors
normal/visual | `SPC l s` | generate setter accessor
normal/visual | `SPC l g` | generate getter accessor
normal/visual | `SPC l a` | generate setter and getter accessor
insert | `<c-j>s` | generate setter accessor
insert | `<c-j>g` | generate getter accessor
insert | `<c-j>a` | generate getter and setter accessor
normal | `SPC l t s` | generate toString function
normal | `SPC l e q` | generate equals and hashcode function
normal | `SPC l c` | generate constructor
normal | `SPC l C` | generate default constructor

**Code formatting:**

the default key bindings for format current buffer is `SPC b f`. and this key bindings is defined in [format layer](). you can also use `g=` to indent current buffer.

To make neoformat support java file, you should install uncrustify. or
download [google's formater jar](https://github.com/google/google-java-format)
and add `let g:spacevim_layer_lang_java_formatter = 'path/to/google-java-format.jar'`
to SpaceVim custom configuration file.

#### Maven

Key Binding | Description
-----------| -----------
`SPC l m i` | Run maven clean install
`SPC l m I` | Run maven install
`SPC l m p` | Run one already goal from list
`SPC l m r` | Run maven goals
`SPC l m R` | Run one maven goal
`SPC l m t` | Run maven test

### Problems buffer

### Project buffer