Program to define a package named 'useFul' with a class named 'UseMe'

In this program, we have created a package useFul and put the UseMe class in that package. Compile this program using java compiler then you will get a .class file in given package.In this program, we have created a package useFul and put the UseMe class in that package. Compile this program using java compiler then you will get a .class file in given package.

PROGRAM
package useFul;
public class UseMe
{
	public void area(double length, double breadth)
	{
		double area = length * breadth;
		System.out.println("Length of Rectangle = "+length);
		System.out.println("Breadth of Rectangle = "+breadth);
		System.out.println("Area of Rectangle = "+area);
	}
	public void salary(double basic_sal, double da, double hra)
	{
		double gross_sal = basic_sal + da + hra;
		System.out.println("Basic salary = "+basic_sal);
		System.out.println("DA = "+da);
		System.out.println("HRA = "+hra);
		System.out.println("Gross Salary = "+gross_sal);
	}
	public void percentage(int tot_marks, int obt_marks)
	{
		double per = (double)obt_marks / tot_marks * 100;
		System.out.println("Total marks = "+tot_marks);
		System.out.println("Obtained marks = "+obt_marks);
		System.out.println("Percentage = "+per);
	}
}
OUTPUT
C:\>javac -d . UseMe.java

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