Chandrakant Shrivastava's -26-08-2022 (Day-9) JAVA FULL STACK DEVELOPEMENT (Core Java) смотреть онлайн

Chandrakant Shrivastava's -26-08-2022 (Day-9) JAVA FULL STACK DEVELOPEMENT (Core Java)
#Scanner #read_data_from_keyboard_java class is used in JAVA to input the data to memory.
Syntax of Scanner class:
Scanner s = new Scanner(System.in)
object s various methods includes - s.nextInt()- to take Integer data; Syntax - Int var= s.nextInt()
- s.nextfloat()- to take float data; Syntax - float var= s.nextfloat()
- s.nextLine()- to take String data; Syntax - Int var= s.nextLine()
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Note- If we read string data after numeric data, the string data reading will be skipped.
*********
This disadvantage can be overcome by the following parse method, which are used to read string data and convert into numeric data:
1. byte var= Byte.parseByte(s.nextLine()):
2. Short var= Short.parseShort(s.nextLine()):
3. int var = Integer.parseInt(s.nextLine());
4. long var= Long.parseLong(s.nextLine()):
5. float var= Byte.parseByte(s.nextLine()):
6. double var= Double.parseDouble(s.nextLine()):
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In the process of constructing JAVA Application, we must use one main class and can use any number of sub class.
Main Class- The class in the application which is holding the main() method is known as Main Class.
Sub Class- The classes declared within the application other than main class is known as subclass.
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The class sub class program to find the total salary-
import java.util.Scanner;
class EmployeeSalary
{
float calculate(int bSal)
{
float tSal = bSal+(0.93F*bSal)+(0.63F*bSal);
return tSal;
}
}

class DemoMethod3

{

public static void main(String[] args)
{
Scanner s =new Scanner(System.in);
System.out.println("Enter the bSal:");
int bs= Integer.parseInt(s.nextLine());
if(bs=12000)
{
EmployeeSalary es= new EmployeeSalary();
float tSal= es.calculate(bs);
System.out.println("Total Salery="+tSal);
}
else
{
System.out.println("Invalid bSal!");
}


}
}