Java True/False 4

True

A file must always be opened before using it and closed when the program is finished using it.

False

In a for statement, the control variable can only be incremented.

False

In the for loop, the control variable cannot be initialized to a constant value and tested against a constant value.

True

Java provides a set of simple unary operators designed just for incrementing and decrementing variables.

False

The do-while loop is a pre-test loop.

True

The do-while loop must be terminated with a semicolon.

True

The while loop has two important parts: (1) a boolean expression that is tested for a true or false value, and (2) a statement or block of statements that is repeated as long as the expression is true.

False

When the break statement is encountered in a loop, all the statements in the body of the loop that appear after it are ignored, and the loop prepares for the next iteration.

True

When the continue statement is encountered in a loop, all the statements in the body of the loop that appear after it are ignored, and the loop prepares for the next iteration.

True

When you open a file with the PrintWriter class, the class can potentially throw an IOException.

True

You can use the PrintWriter class to open a file for writing and write data to it.

True

When you pass the name of a file to the PrintWriter constructor, and the file already exists, it will be erased and a new empty file with the same name will be created.