import java.util.Scanner;
public class Lab4
{
private static Scanner in;
public static void main(String[] args)
{ in = new Scanner (System.in);
int choice=0;//user's input from menu (1,2,or 3)
int i;
int sum=0;//case 1 stored value of 1st m integers
int m;// case 1 variable entered by user
int fact=1;//case 2 stored value of 1st n integers
int n;//case 2 variable entered by user
do{
System.out.println("Please choose your choice from following
menu");
System.out.println("1) Calculate the sum of 1 to m integers");
System.out.println("2) Calculate the factorial of given
number");
System.out.println("3) Quit");
choice = in.nextInt();
switch(choice)
{
case 1:
{ System.out.println("Enter the number");
m=in.nextInt();
for (i=1;i<=m;i++)
sum=sum+i;
System.out.println("The sum of first " +i+ " numbers is " +sum);
}
break;//end of case1
case 2:
{System.out.println("Enter the number");
n=in.nextInt();
for (i=1;i<=n;i++)
fact=fact*i;
System.out.println("The Factorial of "+i+" is "+fact);
}
break;//end of case 2
}//end of switch case
}while (choice<3);//end of do loop
}// end of method
}//end of class
Powered by TCPDF (www.tcpdf.org)
