Download HOMEWORK: Programming Errors

HOMEWORK ASSIGNMENT:
PROGRAMMING ERRORS
PART I:
1.
Each of the following lines of code contains errors. For each line of code, circle the errors
and re-write the correct line of code in the space provided.
System.out.printn(“I LOVE JAVA!”);
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2.
int age = 16
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3.
System.out.println(St. Edmund Campion);
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4.
Scanner input = new Scanner(System.out);
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5.
system.out.println(“Hello world!”);
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6.
double price = input.nextInt();
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7.
import.java.text.DecimalFormat;
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8.
string city;
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9.
System.out.println(“My name is:” name);
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10.
public void static main(String args)
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11.
double wage = $12.00;
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12.
int x = 12.2
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Programming Errors
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13.
char initial = “B”;
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14.
System.out.println(num1 * num2 = num3);
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15.
public class 1_HelloWorld
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PART II:
Copy the following code into a blank Java document and save the program in a project
called Java Errors in your UNIT 2 folder. When you compile the program, you will be
notified of a number of compile-time errors. Correct each error until the program
compiles and runs properly.
import.java.util.Scanner;
public class Errors {
public static main(String[] args); {
// Declare variables
String num1;
int num2;
int sum;
// Declare variable for Scanner object
Scanner input = new Scanner (System.in);
// Prompt user for the first number
System.out.print(Please enter the first number:);
num1 = input.nextInt();
// Prompt user for second number
num2 = input.nextInt();
// Calculate sum
sum = num1 + num2
// Output the sum
system.out.println (num1 + num2 + “=” + sum);
}
}
Programming Errors
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PART III:
Identify whether the following errors are compile-time or run-time errors.
ERROR
COMPILETIME
RUNTIME
1. Forgetting a semi-colon at the end of a statement.
2. Forgetting to enclose Strings with quotations.
3. Trying to cast a double to an int.
4. You use the next() method to store more than one word.
5. Declaring a variable but not specifying the data type (e.g. int, char,
etc.).
6. Using the wrong tax rate to calculate tax on a subtotal.
7. Naming a variable that is a Java keyword.
8. Storing a number with decimals in an int variable.
9. The user inputs a word instead of a number.
10. The program tries to divide by zero.
Programming Errors
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