Java setters and getters

Question

I have been struggling with setters and getters in java for quite a long time now.

For instance, if I want to write a class with some information as name, sex, age

Answer 1

here's how you do it:

public class PersonInfo {

    private String name;
    private String sex;
    private int age;


    /** GETTERS **/

    public String getName(){
        return name;
    }

    public String getSex(){
        return sex;
    }

    public int getAge(){
        return age;
    }

    /** SETTERS **/

    public void setName(String name){
        this.name = name;
    }

    public void setSex(String sex){
        this.sex = sex;
    }

    public void setAge(int age){
        this.age = age;
    }
}

class Test{
    public static void main(String[] args){
        PersonInfo pinfo = new PersonInfo();
        pinfo.setName("Johny");
        pinfo.setSex("male");
        pinfo.setAge(23);

        //now print it

        System.out.println("Name: " + pinfo.getName());
        System.out.println("Sex: " + pinfo.getSex());
        System.out.println("Age: " + pinfo.getAge());

    }
}

Or you can add this as well:

@Override
public String toString(){
    return "Name: " + this.name + "\n" +
            "Sex: " + this.sex + "\n" +
            "Age: " + this.age;
}

and then just to a .toString

EDIT:

Add this constructor in the class to initialize the object as well:

public PersonInfo(String name, String sex, int age){
    this.name = name;
    this.sex = sex;
    this.age = age;
}