Here's how we can overload constructors - and use any one of them at create time.
browse
package org.megha.blog.example.part3;
/**
* Represents a person, with a name and a title.
*/
public class Person {
private String name;
private String title;
/** creates a {@link Person} with a name and a title */
public Person(String name, String title) {
this.name = name;
this.title = title;
}
/** creates a {@link Person} with only a name (title is set to UNKNOWN) */
public Person(String name) {
this(name, "UNKNOWN"); // calls the previous constructor
// with title as UNKNOWN
}
/** creates a {@link Person} without a name or a title */
public Person() {
this("NO_NAME");
// note how the one-arg constructor is called,
// which calls the two arg constructor
}
public void print() {
System.out.println("----------------------");
System.out.println("Name = " + name);
System.out.println("Title = " + title);
}
public static void main(String args[]) {
// Person class has overloaded constructors,
// and we can call any of these.
Person person1 = new Person();
Person person2 = new Person("Sam");
Person person3 = new Person("Sam","Engineer");
person1.print();
person2.print();
person3.print();
}
}
Output of this program:
----------------------
Name = NO_NAME
Title = UNKNOWN
----------------------
Name = Sam
Title = UNKNOWN
----------------------
Name = Sam
Title = Engineer
Mystino Games for Real Money at Casinos in MN
ReplyDeleteMystino games are available to play in our bet365 full-scale online casino games area. These happyluke games include slots, table games, video ミスティーノ poker, blackjack,