Basic troubleshooting

When an error occurs

Here are some common mistakes to watch out for:

• Omitting the semicolon at the end of the statement
• Trying to use an undeclared variable or function
• Forgetting to initialize variables
• Using a single equal sign to check equality
• Trying to print something that is not a String and forgetting .toString()
• Missing or misplaced parenthesis or curly brace
• Trying to access an uninitialized array index or overstepping array boundaries
• Treating 0-based indexes as if they started on 1
• Creating never-ending loops