Question

// 2. Practice debugging this program. It has approximately 22 compiler

errors, 1 logic error and

//1 usability error. Identify them all.

import java.util.scanner;

//This program finds the average of three input values.

public class Arithmeticx

{

public static void main( String [] args )

// declare variables

double number1, number2, number3;

// input data

scanner in = newscanner( );

System.out.print( "Number 1? " );

System.out.print( "Number 2? " );

System.out.print( "Number 3? " );

number 1 = in.nextDouble;

number 2 = in.nextDouble;

number 3 = in.nextDouble;

// calculate average

average = num1 + num2 + num3 / 3;

// print results

system.out.print( Number1 + ", " + Number2 + " & " + Number3 );

system.out.println( " averages to " + average );

Answer 1

Answer: Hey dear student finds the solution of your query if you have any doubt feel free to ask. Thanks!!

//Identify errors

import java.util.scanner;//compiler error no package this name should be Scanner

//This program finds the average of three input values.

public class Arithmeticx
{
public static void main( String [] args )//error
//curly braces missing
// declare variables

double number1, number2, number3;

// input data

scanner in = newscanner( );//compiler error There is no package this name scanner should be Scanner,argument mssing(System.in)

System.out.print( "Number 1? " );//compier error extra space before double comma starting and extra after double comma

System.out.print( "Number 2? " );//compiler error extra space before double comma starting and extra after double comma

System.out.print( "Number 3? " );//compiler error extra space before double comma starting and extra after double comma

number 1 = in.nextDouble;//2compiler error variable name error ,() missing nextDouble() is method

number 2 = in.nextDouble;//2compiler error variable name error ,() missing nextDouble() is method

number 3 = in.nextDouble;//2compiler error variable name error ,() missing nextDouble() is method

// calculate average

average = num1 + num2 + num3 / 3;//logical error there is no declared vraiables in this cope

// print results

system.out.print( Number1 + ", " + Number2 + " & " + Number3 );//5 compiler errors should be System,extra space before variable,case sensitive variable name should be Number1
//2nd variable name ,3rd vraiable name,extra space after 3rd variable name

system.out.println( " averages to " + average );//2 compiler errors syntax error(System),extra space before average and after average
//2compiler error2
//braces is missing

Modified code:

import java.util.Scanner;

//This program finds the average of three input values.

class Main

{

public static void main( String [] args )
{
// declare variables

double number1, number2, number3,average;

// input data

Scanner in = new Scanner(System.in);

System.out.print("Number 1? ");

System.out.print("Number 2? ");

System.out.print("Number 3? ");

number1 = in.nextDouble();

number2 = in.nextDouble();

number3 = in.nextDouble();

// calculate average

average = number1 + number2 + number3;

// print results

System.out.print(number1 + ", " + number2 + " & " + number3);

System.out.println("averages to " + average);
}
}
//2 compiler errors