Lab16 Java switch driven menu Array.txt

package Lab16;
import java.util.Scanner;
public class Lecture16 
{
 public static void main(String [] args)	
 
 {
	 /*
	  Write a menu driven Java program with following option
	  1.Enter the elements of the array
	  2.Display elements of the array
	  3.Find Sum and Average of Array elements.
	  4.find largest and smallest elements of an array
	  */

	      //the menu Design
	 Scanner input = new Scanner (System.in);
	 int option;
	 System.out.println("Please Enter the size of the array : ");
	 int size=input.nextInt();
	 int list [] = new int[]{1,2,3,4};
	 int sum=0;
	 float average;
	 int largest = list[0];
	 int smallest = list[0];
 
	 do {
	System.out.println("1.Enter the elements of the array");
	System.out.println("2.Display elements of the array");
	System.out.println("3.Find Sum and Average of Array elements.");
	System.out.println("4.Find largest and smallest elements of an array");
	
	System.out.println("Please Select an option");
	option=input.nextInt();
	
	switch (option)
	{
	case 1 :
		   for (int i=0 ; i<list.length ; i++)
	    {
			   System.out.println("Enter the elements of the array");  
			   list[i]=input.nextInt();
	    }
	    break;
	case 2:
	    for (int i=0 ; i<list.length ; i++)
	    {
	    	System.out.println("list["+ i +"]="+list[i]);
	    	
	    }
	    break;
	case 3:
	    for (int i=0 ; i<list.length ; i++)
	    {
	    	System.out.println("Enter a number");
	    	list [i]= input.nextInt();
	    	sum = sum + list[i]; 
	    }
	    System.out.println("Sum of Array : "+ sum);
         average = (float) sum / list.length;
        System.out.println("Average of Array : "+ average);
	    
	    break;
	case 4:
	    for (int i=0 ; i<list.length ;i++)
	   { 
	    	 if(list[i] > largest)
	    	 
	    		 largest = list[i];
	    	 
	    	if (list[i] <= smallest)
                 
        	       smallest = list[i];
        }
            
	    System.out.println("Largest Number is : " + largest);
        System.out.println("Smallest Number is : " + smallest);
        break;
	   }
	 
		
 }
	     while (option !=4);
}
}