Write a program to display the properties of Tv using Outer class and Inner class

Hello guys, welcome to lingarajtechhub.com . Today we are going to discuss the display the properties of Tv using Outer class and Inner class.

Code:

package com.Tv.java;
public class Tv {
  private String company="LG";
  
   class Details{
	   float inch=20.5f;
   }
	public static void main(String[] args) {
		Tv t=new Tv();
		
		Details d=t.new Details();
		System.out.println(t.company);
		System.out.println(d.inch);
	}

}

Line-1

package com.Tv.java

It is a java package , this package is created in a java project and it contains classes & interfaces inside the package.

Line-2

public class Tv

Tv 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

private String company=”LG”

Here company is a variable.String is a class. It is not a data type.Here assign company value.It is private means we can’t access that value outside of the class.

Line-5

class Details

Details are the class name. class is a template used to create objects. Inside the outer class we create the inner class.

Line-6

float inch=20.5f

Here inch is a variable. float is a data type of the variable. Here assign inch value.

Line-8

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.