Hello guys, welcome to lingarajtechhub.com. Today we are going to discuss the display properties of AC using class and object in java.
Code:
package com.AC_oops_class_obj.java; public class AC { String name; int price; void AC_input() { name="hi-tachi"; price=50000; } void AC_display() { System.out.println(name); System.out.println(price); } public static void main(String[] args) { AC a=new AC(); a.AC_input(); a.AC_display(); } }
Line-1:
- package com.AC_oops_class_obj.java
It is a java package , this package is created in a java project and it contains classes inside the package.
Line-2:
- public class AC
“AC” is the class-name , class is a template used to create objects & class-name first letters must be capital. It is public means we can use this outside of the package.
Line-3:
- String nameHere the name is the variable and String is a class. It is not a data type
Line-4:
- int price
Here price is the variable and int (Integer) is a data type of the variable.
Line-6:
- void AC_input() {
name=”hi-tachi”;
price=50000;
}
In this line we create a method whose name takes AC_input() where store properties values.
Line-10:
- void AC_display() {
System.out.println(name);
System.out.println(price);
}
In this line we create a method whose name takes AC_display().system is a predefined class .Out is a static variable of type printstream present in system class. Println shows the result.
Line-15:
- public static void main(String[] args)
It is a main method in which we can execute a program.
- public : It is an access modifier. The main() is public because we can access main() outside of the class , if main() can’t be public then JVM(Java Virtual Machine) can’t be called main() & code can’t be executed.
- Static : static is a keyword in which the main method has to be static in which JVM can load the class into memory and call the main method without creating an instance.
- Void : Void is a data type. It means no return type.
- main(): Main is a function.
- String [] args : string means collection of characters ,String[] args represents a collection of Strings that are separated by a space and can be typed into the program on the terminal directly.
Line-16:
- AC a=new AC()
Here “a” is the instance variable.It is created to assign the default values to the instance variables of the class when an object is created.
Line-17:
- a.AC_input()
“a” is the instance variable which is created. “ .” is the connector .AC_input() is a method where our input values will be stored.
Line-18:
- a.AC_display()
“a” is the instance variable which is created. “ .” is the connector . AC_display() is a method where our result will be stored.