Java language Programming Interview Questions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What is an Exception | Abnormal conditions that may occur while running a Java program allow creation of robust, predictable applications.
_Checked_ Predictable, handling verified during compile time
_Unchecked_ mostly uncontrollable factors (out of memory, ...)
🗑
|
||||
| What are the general types of Exceptions | All inherit from class Throwable
Exception (Checked): [Run Time] + [Compile Time] Must be handled, i.e. SQLException, IOException
Error (Unchecked): May be thrown, not usually to be caught, used by Java Runtime, i.e. NullPointer.
🗑
|
||||
| Explain some details of Checked Exceptions | Java source code must deal with, either by catching it or declaring it to be thrown.
Programmers should anticipate and handle
🗑
|
||||
| Explain some details of Unchecked Exceptions | Inherit from class Error or RuntimeException.
Should not handle these exceptions because they represent errors from which programs cannot reasonably be expected to recover while the program is running.
🗑
|
||||
| Summarize Exceptions | Checked Exception handling is verified during compile time while Unchecked Exception is mostly programming errors
🗑
|
||||
| Give a coding example of an using exceptions | try {
someMethod();
} catch ( ExType ex ) {
log(message);
} finally() {
}
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
rjpelletier
Popular Computers sets