A repetition control statement is used to repeatedly execute a block of code until a certain condition is met.
Three repetition control statements are while, do–while, and for.
The count-controlled loop executes the loop body for a fixed number of times.
The sentinel-controlled loop executes the loop body until any one of the designted values called a sentinel is encountered.
Count-controlled loops can be implemented most naturally with the for statements.
Sentinel-controlled loops can be implemented most naturally with the while or do–while statements.
The while statement is called a pretest loop, and the do–while statement is called a posttest loop. The for statement is also a pretest loop.
Reading a value before the loop statement is called a priming read.
Off-by-1 error and infinite loops are two common mistakes in writing a loop control.
The loop-and-a-half repetition control is the most general way of writing a loop. The break statement is used within the loop body to exit the loop when a certain condition is met.
The showConfirmationDialog method of the JOptionPane class is used to display a confirmation dialog.
The nested-for statement is used very often because it is ideally suited to process tabular data.
The random method of the Math class is used to generate a pseudorandom number.
