it is used to achieve abstraction and mulilevel inheritance in java
Anonymous Quiz
74%
interface
7%
abstract
7%
None of the above
11%
All answers are correct
the methods declared in interface class are by
Anonymous Quiz
16%
defult interface
84%
defult abstract
ملاحظة الشيت مكتوب ان الinterface مستحيل بكون لها تنفيذ في كلاس بس في اصدارات 8.9.
قعدت تنفذ جوا عادي. بواسطة 3طرق
1. private methods
2. keyword defult
2. static methods
قعدت تنفذ جوا عادي. بواسطة 3طرق
1. private methods
2. keyword defult
2. static methods
❤3
interface&&interface
علاقة وراثة
interface&®ular class
علاقة implementation
علاقة وراثة
interface&®ular class
علاقة implementation
❤5
Forwarded from S.O.P("قناة مناهج كلية تقنية المعلومات");
Method is overriden not the datamembers, so runtime polymorphism can be achieved by data members
Anonymous Quiz
53%
True
47%
False
public class Person {
String name;
int age;
public Person(String name, int age) {
this.name = name;
this.age = age;
}
public void displayInfo() {
System.out.println(name + " is " + age + " years old.");
}
public static void main(String[] args) {
Person person;
person.displayInfo();
}
}output??
public class Person {
String name;
int age;
public Person(String name, int age) {
this.name = name;
this.age = age;
}
public void displayInfo() {
System.out.println(name + " is " + age + " years old.");
}
public static void main(String[] args) {
Person person;
person. age=20;
person.displayInfo();
}
}❤1
public class Person {
String name;
int age;
Person (int y, String a){
age=y;
name=a;
}
public void displayInfo() {
System.out.println(name + " is " + age + " years old.");
}
public static void main(String[] args) {
Person person=new Person(20,"M");
Person p;
p=person;
p.displayInfo();
}
}👍4❤2