Official IntelliJ IDEA Getting Started Guide

IntelliJ IDEA is a very powerful Integrated Development Environment (IDE) that can save an experienced user a lot of time.

Here are a handful of neat features!

Assorted Shortcuts:

Try typing “sout” inside a method and look at what happens.

A list of choices appears:

Hit tab or enter and it will create this:

Some other ones to try,  along with what they make:

psvm

public static void main(String[] args) {
    
}

fori

for (int i = 0; i < ; i++) {

}

Generate Constructors / Getters / Setters:

After you create a class and declare a few class variables, you can auto-generate some basic methods very quickly.

Start with something like this:

public class MyClass {
    String textInfo;
    int numberInfo;
    
}

Now put your cursor inside the curly braces, right click the code editor, and click generate (or alt+insert on keyboard).

Choose constructor. You will see a list of your two variables. Hold shift and click on the fields, or push shift + down arrow to select both. Hit OK.

This is a very fast way to generate the following constructor method:

public MyClass(String textInfo, int numberInfo) {
    this.textInfo = textInfo;
    this.numberInfo = numberInfo;
}

Now right click and generate again, and select “Getter and Setter.”  Select both attributes and hit enter (or click OK).

That gives you all of these methods:

public String getTextInfo() {
    return textInfo;
}

public void setTextInfo(String textInfo) {
    this.textInfo = textInfo;
}

public int getNumberInfo() {
    return numberInfo;
}

public void setNumberInfo(int numberInfo) {
    this.numberInfo = numberInfo;
}

That’s a very fast way to create a new class with some of its basic methods already in place.