Chapter 5 File Objects and Looping Statements (Count-controlled Loop Example only)

1. Chapter 5 File Objects and LoopingStatements (Count-controlled Loop Example only)

2. Count-controlled loops contain • An initialization of the loop control variable • An expression to test for continuing the loop • An update of the loop control variable to be executed within each iteration of the body

3. Count-controlled Pattern int loopCount; // Declare loop variable loopCount = 1; // Initialize loop variable while (loopCount <= 10) // Test expression { . // Repeated actions . . loopCount = loopCount++; // Update loop variable }

4. Count-controlled Example int count; // Declare loop variable count = 1; // Initialize loop variable while (count <= 4) // Test expression { // Repeated action System.out.println(“count is “ + count); count ++;// Update loop variable } System.out.println(“Done”);

5. count Count-controlled loop int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println(“Done”); OUTPUT

6. count 1 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT

7. count 1 int count; count = 1; while ( count <= 4 ) { TRUE System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT

8. count 1 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1

9. count 2 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1

10. count 2 int count; count = 1; while ( count <= 4 ) { TRUE System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1

11. count 2 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2

12. count 3 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2

13. count 3 int count; count = 1; while ( count <= 4 ) { TRUE System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2

14. count 3 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2 count is 3

15. count 4 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2 count is 3

16. count 4 int count; count = 1; while ( count <= 4 ) { TRUE System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2 count is 3

17. count 4 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2 count is 3 count is 4

18. count 5 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2 count is 3 count is 4

19. count 5 int count; count = 1; while ( count <= 4 ) { FALSE System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2 count is 3 count is 4

20. count 5 int count; count = 1; while ( count <= 4 ) { System.out.println ( “count is “ + count ); count++; } System.out.println( “Done” ); OUTPUT count is 1 count is 2 count is 3 count is 4 Done