الكلمة المفتاحية this

public class Person {
    private String name;
    
    public Person(String name) {
        name = name;  // يقوم بتعيين المعامل لنفسه!
    }
}

public class Person {
    private String name;
    
    public Person(String name) {
        this.name = name;  // تعيين المعامل للحقل
    }
    
    public String getName() {
        return this.name;
    }
}

public class Person {
    private String name;
    private int age;
    
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
    
    public String getDescription() {
        return this.name + " is " + this.age + " years old";
    }
}