Comments and Debugging

Question 1

used for a single line comment

Answer 1

//

Question 2

used for a multiline comment

Answer 2

/* … */

Question 3

used for documentation (JavaDoc)

Answer 3

/** … */

Question 4

Comments are used to provide information on:

Answer 4

classes, methods, constructors, and more and often use the @ to tag stuff

Question 5

Debugging is…

Answer 5

is the process of finding current and potential issues, then removing or resolving them

Question 6

types of errors

Answer 6

syntax - code will not compile
runtime -code compiles and can create exceptions
logical - code runs but doesn’t do what is expected

Question 7

what is an exception?

Answer 7

An exception is an event that happens while a program is running. It disrupts the normal flow of instructions.

Question 8

NullPointerException is caused when…..

Answer 8

is caused when you attempt to use reference type objects before they are initialized.

Question 9

ArrayIndexOutOfBoundsException is caused…..

Answer 9

is caused when you try to access an index of an Array that does not exist.

Question 10

@param and @return are?

Answer 10

@param and @return are two commonly used Javadoc tags used in Java to document methods and functions.

Question 11

The @param tag is used to…..

Answer 11

The @param tag is used to describe the parameters of a method or function. It is used to document what each parameter does, its data type, and any constraints or requirements that apply.

Question 12

The @return tag is used to…..

Answer 12

The @return tag is used to describe the return value of a method or function. It is used to document what the method returns, its data type, and any constraints or requirements that apply.