public class Lab5

{

public static void main (String[] args) throws Exception

{

final int ARRAY_MAX = 30;

// "args" is the list of tokens you put after "java Project3" on command line

if (args.length == 0 ) // i.e If you did not type anything after "java Project4" on command line

{

System.out.println("FATAL ERROR: Must type a filename on cmd line " +

"Like this -> C:\\Users\\tim\\Desktop>java Project4 P4input.txt");

System.exit(0); //ABORT program. Make user try again with a filename this time.

}

Scanner infile = new Scanner( new File(args[0]) );

int[] array = new int[ARRAY_MAX];

int count=0;

while ( infile.hasNextInt() )

array[count++] = infile.nextInt(); // POST increment NOT pre. Do you see why?

System.out.println( "array capacity: " + array.length + " array count: " + count);

printArray( array, count ); // ECHO ALL (count) ELEMENTS ON ONE LINE

System.out.println("The sum of the numbers in array is: " + calcSum( array, count ) );

System.out.println("The INDEX of the minimum value in array is: " + indOfMin( array, count ) );

System.out.println("The minimum value in array is: " + minVal( array, count ) );

System.out.println("The INDEX of the maximum value in array is: " + indOfMax( array, count ) );

System.out.println("The maximum value in array is: " + maxVal( array, count ) );

System.out.format("The average of the numbers in array is: %.2f ", calcAverage( array, count ) );

} // END main

// GIVEN AS IS: DO MOT MODIFY Or DELETE

private static void printArray( int[] a, int cnt )

{

System.out.print( "array elements: ");

for ( int i=0 ; i

System.out.print( a[i] + " " );

System.out.println();

}

// #############################################################################################

// JUST LIKE IN LAB5. YOU MUST WRITE THE DEFINTIONS OF THE METHODS ABOVE THAT ARE CALLED IN MAIN

// #############################################################################################

// CALCSUM: (I'LL GIVE YOU THE TEMPLATE OF THE FIRST METHOD TO FOLLOW FOR THE REST)

private static int calcSum( int[] arr, int cnt)

{

int sum=0; // declare a var to hold the running total as you add each one increment

// HERE: write a for loop on i that adds each a[i] into sum

return sum; // DONE;

}

// INDOFMIN: You must examine each element and return index position

// of the smallest number in the array

// MINVAL: TRY TO RE-USE indOfMin in your calculation

// If you do then this whole method is 1 liner return statement

// and you don't need any loops ;)

// INDOFMAX: You must examine each element and return index position

// of the largest number in the array

// MAXVAL: TRY TO RE-USE indOfMax in your calculation

// If you do then this whole method is 1 liner return statement

// and you don't need any loops ;)

// CALCAVERAGE: TRY TO RE-USE calcSum in your calculation

// If you do then this whole method is 1 liner return statement

// and you don't need any loops ;)

} //END OF LAB5 CLASS