diff --git a/.config/bash/module/Export.sh b/.config/bash/module/Export.sh
index 2e9b0f7..0cd279a 100644
--- a/.config/bash/module/Export.sh
+++ b/.config/bash/module/Export.sh
@@ -1,5 +1,5 @@
 # add all links in ~/app/bin/
-export PATH=$( find -L $HOME/app/bin/ -type d -printf ":%p" 2> /dev/null ):$PATH
+export PATH=$( find -L ${HOME}/app/bin/ -type d -printf ":%p" 2> /dev/null ):${PATH}
 
 # specify locale.
 #export LC_ALL=C
@@ -12,7 +12,7 @@ export EDITOR=nvim
 export MANPAGER="nvim +Man!"
 
 # specify java path.
-export JAVA_HOME="$HOME/app/java/x64/jdk_11"
+export JAVA_HOME="${HOME}/app/java/x64/latest"
 
 # specify android sdk root.
 export ANDROID_SDK_ROOT="$HOME/.android/sdk"
@@ -20,9 +20,39 @@ export ANDROID_SDK_ROOT="$HOME/.android/sdk"
 # specify tex paths.
 #export TEXMFSYSVAR="$HOME/app/tex/data/var"
 #export TEXMFSYSCONFIG="$HOME/app/tex/data/config"
-export TEXMFVAR="$HOME/app/tex/data/var"
-export TEXMFCONFIG="$HOME/app/tex/data/config"
-export TEXMFLOCAL="$HOME/app/tex/data/local"
+export TEXMFVAR="${HOME}/app/tex/data/var"
+export TEXMFCONFIG="${HOME}/app/tex/data/config"
+export TEXMFLOCAL="${HOME}/app/tex/data/local"
 
 # Dotfiles exports.
 export BASH_MODULE_PATH="${HOME}/.config/bash/module"
+
+# Set java version. Sets to latest when not specified.
+# Usage: export_java [VERSION]
+function export_java() {
+	local version="${1}"
+
+	if [[ "${version}" = "" ]]; then
+		export JAVA_HOME="${HOME}/app/java/x64/latest"
+		return
+	fi
+
+	local available=($(_get_java_versions))
+
+	if ! _contains ${version} ${available[@]}; then
+		_error "Version ${version} is not available."
+		return 1
+	fi
+
+	export JAVA_HOME="${HOME}/app/java/x64/jdk_${version}"
+}
+
+function _get_java_versions() {
+	ls "${HOME}/app/java/x64/" | grep "jdk_" | sed -e "s/.*_//" | sort -g
+}
+
+function _comp_java_versions() {
+	_autocomplete_first "$(_get_java_versions)"
+}
+
+complete -o nosort -F _comp_java_versions export_java
diff --git a/.doc/Bash.md b/.doc/Bash.md
index a029257..f2853b8 100644
--- a/.doc/Bash.md
+++ b/.doc/Bash.md
@@ -137,6 +137,12 @@ Command|Description
 ---|---
 `doc_bash`|Generate a markdown file with all the help info. Outputs to `~/.doc/Bash.md`. 
 
+## Export.
+
+Command|Description
+---|---
+`export_java [VERSION]`|Set java version. Sets to latest when not specified. 
+
 ## Ffmpeg.
 
 Command|Description