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| • 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 designated 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 loop 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. |