Update .gitignore with Java/Maven/Eclipse/IDEA patterns

.gitignore

@@ -1,4 +1,4 @@
-# ---> Java
+# Java
 # Compiled class file
 *.class
 
@@ -11,7 +11,7 @@
 # Mobile Tools for Java (J2ME)
 .mtj.tmp/
 
-# Package Files #
+# Package Files
 *.jar
 *.war
 *.nar
@@ -20,7 +20,20 @@
 *.tar.gz
 *.rar
 
-# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+# virtual machine crash logs
 hs_err_pid*
 replay_pid*
 
+# Eclipse
+.classpath
+.project
+.settings/
+.factorypath
+
+# IntelliJ IDEA
+.idea/
+*.iml
+
+# Maven
+dependency-reduced-pom.xml
+target/