Exam 5: Loops and Files

Assuming that inputFile references a Scanner object that was used to open a file, which of the following statements will read an int from the file?

When working with the PrintWriter class, which of the following import statements should you have near the top of your program?

A loop that executes as long as a particular condition exists is called a(n) __________ loop.

The __________ loop is ideal in situations where the exact number of iterations is known.

Which of the following statements opens a file named MyFile.txt and allows you to read data from it?

In a for loop, the control variable is always incremented.

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.

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.

A __________ loop will always be executed at least once.

An item that separates other items is known as a

Given the following statement, which statement will write the string "Calvin" to the file DiskFile.txt? PrintWriter diskOut = new PrintWriter("DiskFile.txt");

What will be the value of x after the following statements are executed? int x = 10; For (int y = 5; y < 20; y +=5) X += y;

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

How many times will the following for loop be executed? for (int count = 10; count <= 21; count++) System.out.println("Java is great!");

The do-while loop is ideal in situations where you always want the loop to iterate at least once.

What will be the values of x and y as a result of the following code? int x = 25, y = 8; X += y++;

The for loop is a posttest loop that has built-in expressions for initializing, testing, and updating.

The variable used to keep a running total in a loop is called a(n) __________.

A loop that repeats a specific number of times is known as a(n)

What will be the value of x after the following code is executed? int x = 10; While (x < 100) { X += 100; }