Answer:
import java.util.Scanner;
public class num2 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int count =0;
int total = 0;
System.out.println("Enter the numbers");
int num = in.nextInt();
while(num!=-1){
total = total+num;
count++;
System.out.println("Enter the next number");
num = in.nextInt();
}
//Compute the average
double average = (double) total/count;
//Outputs
System.out.println("Total count of numbers entered "+(count));
System.out.println("Sum of the numbers "+total);
System.out.printf("Average is %.2f ",average);
}
}
Explanation:
- Using java programming language
- Import scanner class to receive user input
- declare variables count and total and initialize to zero
- Prompt user to enter numbers
- Use a while statement with the condition while(num!=-1)
- Within the while body keep prompting user to enter a number, increase count and update total
- when -1 is entered the loop breaks and average is calculated
- Use printf() method to print average to 2 decimal places.
One answer could be a GUI = Graphical User Interface (e.g. Windows Explorer).
Answer:
A lot is wrong with the program given in the question. See the corrected version below:
<em>public class ANot {</em>
<em> public static void main(String[] args) {</em>
<em> int a, b, c;</em>
<em> //Three integers</em>
<em> a = 3; b = 4; c = a + b;</em>
<em> System.out.println("The value of c is " + c);</em>
<em> }</em>
<em>}</em>
Explanation:
Errors:
1. The main method had a semi colon after it. This is wrong
2. An open brace was supposed to follow the main method
3. The declaration of the variables was supposed to end with a semi colon
4. the correct comment style is // and not \\
5. Initialization of variables was supposed to end with semi colons
6. The output statement had C and not c which is the declared and initialized variable..Java is strictly typed
7. Open and closing braces for the class and method wrongly placed
<span>To use an online resource, it should be relevant to the topic. It should be credible, coming from an expert on the topic. Finally, it should be valid, coming from a source that is based in truth or fact.</span>
