IntelliJ IDEA

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Checkstyle-IDEA (Configure to config/checkstyle/checkstyle.xml)

SonarLint (Configure to server


MacOs Shortcuts *****

Eclipse IntelliJ IDEA Description
F4 ctrl+h show the type hierarchy
ctrl+alt+g ctrl+alt+F7 find usages
ctrl+shift+u ctrl+f7 finds the usages in the same file
alt+shift+r shift+F6 rename
ctrl+shift+r ctrl+shift+N find file / open resource
ctrl+shift+x, j ctrl+shift+F10 run (java program)
ctrl+shift+o ctrl+alt+o organize imports
ctrl+o ctrl+F12 show current file structure / outline
ctrl+shift+m ctrl+alt+V create local variable refactoring
syso ctrl+space sout ctrj+j System.out.println(“”)
alt + up/down ctrl + shift + up/down move lines
ctrl + d ctrl + y delete current line
??? alt + h show subversion history
ctrl + h ctrl + shift + f search (find in path)
“semi” set in window-> preferences ctrl + shift + enter if I want to add the semi-colon at the end of a statement
ctrl + 1 or ctrl + shift + l ctrl + alt + v introduce local variable
alt + shift + s alt + insert generate getters / setters
ctrl + shift + f ctrl + alt + l format code
ctrl + y ctrl + shift + z redo
ctrl + shift + c ctrl + / comment out lines (my own IDEA shortcut definition for comment/uncomment on german keyboard layout on laptop: ctrl + shift + y)
ctrl + alt + h ctrl + alt + h (same!) show call hierarchy
none ? ctrl + alt + f7 to jump to one of the callers of a method
ctrl + shift + i alt + f8 evaluate expression (in debugger)
F3 ctrl + b go to declaration (e.g. go to method)
ctrl + l ctrl + g go to line

IntelliJ - Git Setting

Tips & Tricks

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@ComponentScan("com.oasissofttech.forotherpackagebeans")//default is main class package and sub-packages
public SpringMainClass {
	private static Logger LOGGER = LoggerFactory.getLogger(SpringMainClass.class);

	public static void main(Stirng[] args){
		ApplicationContext applicationContext =,args);
		PersonDAO personDao = applicationContext.getBean(PersonDAO.class);"{}",personDao);

		proxyMode = ScopedProxyMode.TARGET_CLASS)
public class JdbcConnection{
	public JdbcConnection{
		System.out.println("JDBC connection");

public void postConstruct(){"postConstruct");

public void preDestroy(){"preDestroy");
} file = debug
   logging.level.root=debug #springboot


public class MockitoTest{
  DataService dataServiceMock;

  SomeBusinessImpl businessImpl;

  public void testCase1(){
    when(dataServiceMock.retrieveAllData()).thenReturn(new int[]{24,15,3});

Spring Unit Testing with an XML Context


Spring Boot Actuator


actuator url: http://locahost:8080/application - The HAL Browser

Spring Boot Developer Tools

no need to restart server/application, it is automatically pick up