[Java] A technique for writing constructors, getters, and setters in one shot with IntelliJ IDEA.

When creating a class that instantiates an object in Java

-** Constructor **

• Default constructor -** Getter (get () method) ** -** Setter (set () method) **

It seems that you write it roughly, but it is troublesome to write code every time.

Solution (Mac OS)

Conclusion: Let's generate it automatically with ** command + n ** without touching it! !!

Let's take the Person class, which has a person's name, age, and ID as member variables, as an example.

** Person class **

public class Person {
    private int PersonId;
    private String PersonName;
    private int PersonAge;

    public Person(int PersonId, String PersonName, int PersonAge) {
        this.PersonId = PersonId;
        this.PersonName = PersonName;
        this.PersonAge = PersonAge;
    }

    public Person() {
    }

    public int getPersonId() {
        return PersonId;
    }

    public String getPersonName() {
        return PersonName;
    }

    public int getPersonAge() {
        return PersonAge;
    }

    public void setPersonId(int PersonId) {
        this.PersonId = PersonId;
    }

    public void setPersonName(String PersonName) {
        this.PersonName = PersonName;
    }

    public void setPersonAge(int PersonAge) {
        this.PersonAge = PersonAge;
    }
}

manner

-** Constructor, create default constructor **

    public Person(int PersonId, String PersonName, int PersonAge) {
        this.PersonId = PersonId;
        this.PersonName = PersonName;
        this.PersonAge = PersonAge;
    }

    public Person() {
    }

Select Constructor with command + n

** Select a member variable ** and click OK to automatically generate the constructor. If ** no variables are specified **, the default constructor will be automatically generated.

-** Create Getter / Setter **

    public int getPersonId() {
        return PersonId;
    }

    public String getPersonName() {
        return PersonName;
    }

    public int getPersonAge() {
        return PersonAge;
    }

    public void setPersonId(int PersonId) {
        this.PersonId = PersonId;
    }

    public void setPersonName(String PersonName) {
        this.PersonName = PersonName;
    }

    public void setPersonAge(int PersonAge) {
        this.PersonAge = PersonAge;
    }

Select Getter / Setter with command + n Select a member variable and click OK to automatically generate Getter / Setter for each variable.

in conclusion

This is the easiest because you don't have to write get (), set () many times anymore.

Thank you very much.