Turli stsenariylarda "bu" ning qiymati qanday tayinlanadi | 2 daqiqada
Ushbu kalit so'zdan foydalanish
- Joriy sinf namunasi o'zgaruvchisiga murojaat qilish uchun foydalaniladi.
- Joriy sinf standart konstruktorini chaqirish uchun foydalaniladi.
- Joriy sinf usulini chaqirish uchun foydalaniladi.
- Joriy java nusxasini qaytarish uchun foydalaniladi.
1.Joriy sinf misol o'zgaruvchisiga murojaat qilish uchun ishlatiladi.
package this_keyword;
class Student{
//instance variable
String name;
int age;
//Parameterized constructor
Student(int age,String name)
{
this.name=name;
this.age=age;
}
void display()
{
System.out.println(name+" "+age);
}
}
public class This_keyword_example {
public static void main(String[] args) {
Student s= new Student(25,"waman");
s.display();
}
}
Ouput
waman 25
2.Joriy sinf konstruktorini chaqirish uchun foydalaniladi
package this_keyword;
class Student1{
String name;
int age;
//no parameterized constructor
Student1()
{
System.out.println("This is defualt constructor");
}
//parameterized constructor
Student1(int age,String name)
{
this();
this.name=name;
this.age=age;
}
void dislpay()
{
System.out.println("Name of student:" +name+" Age: "+age);
}
}
public class this_Example2 {
public static void main(String[] args) {
Student1 s=new Student1(25,"waman");
s.dislpay();
}
}
Output
This is defualt constructor
Name of student:waman Age: 25
3.Joriy sinf usullarini chaqirish uchun foydalaniladi
package this_keyword;
class employee{
void salary()
{
System.out.println("inside salary method");
}
void bonus()
{
this.salary();
System.out.println("inside bonus method");
}
}
public class this_Example3 {
public static void main(String[] args) {
employee e=new employee();
e.bonus();
}
}
Output
inside salary method
inside bonus method
4.Joriy JAVA instasini qaytarish uchun foydalaniladi
package this_keyword;
class Example{
Example getStudent()
{
return this;
}
void disp()
{
System.out.println("calling disp() method");
}
}
public class this_Example4 {
public static void main(String[] args) {
new Example().getStudent().disp();;
}
}
Output
calling disp() method
5.Ushbu kalit so'zni isbotlash
Bu erda biz mos yozuvlar o'zgaruvchining bir xil chiqishini chop etamiz va bu
class staff{
void technical()
{
System.out.println(this);
}
}
public class this_Example5 {
public static void main(String[] args) {
staff s=new staff();
System.out.println(s);
s.technical();
}
}
Output
this_keyword.staff@12edcd21
this_keyword.staff@12edcd21
Bizga qimmatli 2 daqiqa vaqt ajratganingiz uchun tashakkur , har qanday munozara uchun Dm ga yozing.
Pochta: [email protected]
GitHub: https://github.com/WamanBirajdar
