Reading a Character :
The Scanner class does not have a method for reading a single character, however. Using Scanner class's nextLine method to read a string from the keyboard, and then use String class's charAt method to extract the first character of the string will solve the problem.
Scanner method's annoying nextLine problem:
Will update later...
Common Errors to Avoid
- Mismatched braces, quotation marks, or parentheses.
- Misspelling key words.
- Using capital letters in key word.
- Using key word as variable name.
- Using inconsistent spelling of variable names.
- using inconsistent case of letters in variable names.
- Inserting a space in a variable name.
- Forgetting the semicolon at the end of the statement.
- Assigning a double literal to a float variable.
- Using commas or other currency symbols in numeric literals.
- Unintentionally performing integer division.
- Forgetting to group parts of a mathematical expression.
- Inserting a space in a combined assignment operator.
- Using a variable to receive the result of calculation when the variable's data type is incompatible with the data type of the result.
- Incorrectly terminating a multi*line comment or a documentation comment
- Forgetting to use the correct import statement in a program that uses X library.