java programming- control statements

5. It is used to take decision based on a single condition Syntax: False True If condition is True; control will enter the if block If condition is False; control will execute statement followed by if block

6. Flow Chart: True False

7. Example: Read marks from user and state only if user is pass.

8. It is used to take decision based on a single condition Syntax: True False

9. Flow Chart: True False

10. The if else statement has one condition and two statement blocksTrue block and False block If condition is True; control will execute the statement in the true block If condition is False; control will execute the statement in false block

11. Example: Read marks from user and state whether student is Pass or Fail

12. It is used to take decision based on two conditions. Syntax:

13. Flow Chart: True False If within else

14. Example:

15. The Nested if can be inside the if-part or else-part Syntax:

18. Example:

19. Example:

20. A switch statement is used to test many conditions Syntax:

21. Flow Chart: Start Variable or Expression Case A Statements Case A True False Case B Statements Case B True False Case C Statements … True False default End Default Statements

22. Flow Chart: Start Variable or Expression Case A True Case A Statements break; False Case B True Case B Statements break; False … True Case C Statements break; False default End Default Statements

23. Example:

27. -Initialization -Condition checking -Execution -Increment / Decrement

30. Entry Controlled Exit Controlled Condition is checked at the entry of the loop Condition is checked at the exit of the loop If condition is initially false, the loop never executes If condition is initially false, then also the loop executes at least once i=1; while(i==0) { System.out.println(“In While loop”); } System.out.println(“out of the loop”); i=1; do { System.out.println(“In While loop”); } while(i==0); System.out.println(“out of the loop”); Output: Out of the loop Output: In while loop Out of the loop Example- for, while Example – do-while

34. Initialization Statement is used to initialize a variable/ counter.

35. The condition statement controls the execution of loop The loop executes till condition statement is true the

36. The execution statements are the main body of a loop All action statements of loop are written here

37. This section is used to increment or decrement the variable value

38. Output 1 i Variable i in memory

39. Output 1 i Variable i in memory Condition is True

40. Output 1 1 i Variable i in memory Check it out here

41. Check it out here Output 1 2 i Variable i in memory

42. Output 1 2 i Variable i in memory Condition is checked again

43. Output 1 2 i Variable i in memory Condition is True

44. Output 2 i Variable i in memory 1 2 Check it out here

45. Check it out here 3 i Variable i in memory Output 1 2

46. Output 3 i Variable i in memory 1 2 Condition is checked again

47. Output 3 i Variable i in memory 1 2 Condition is True

48. Output 3 i Variable i in memory 1 2 3 Check it out here

49. Check it out here 4 i Variable i in memory Output 1 2 3

50. Output 4 i Variable i in memory 1 2 3 Condition is checked again

51. Output 4 i Variable i in memory 1 2 3 Condition is True

52. Output 4 i Variable i in memory 1 2 3 4 Check it out here

53. Check it out here 5 i Variable i in memory Output 1 2 3 4

54. Output 5 i Variable i in memory 1 2 3 4 Condition is checked again

55. This process will continue till the condition become false Suppose value of i is 9 now

56. Output 9 i Variable i in memory 1 2 3 4 5 6 7 8 Condition is True

57. Output 9 i Variable i in memory 1 2 3 4 5 6 7 8 9 Check it out here

58. Check it out here 10 i Variable i in memory Output 1 2 3 4 5 6 7 8 9

59. Output 10 i Variable i in memory 1 2 3 4 5 6 7 8 9 Condition is checked again

60. Output 10 i Variable i in memory 1 2 3 4 5 6 7 8 9 Condition is Still True

61. Output 10 i Variable i in memory 1 2 3 4 5 6 7 8 9 10 Check it out here

62. Check it out here 11 i Variable i in memory Output 1 2 3 4 5 6 7 8 9 10

63. Output 11 i Variable i in memory 1 2 3 4 5 6 7 8 9 10 Condition is checked again

64. Output 11 i Variable i in memory 1 2 3 4 5 6 7 8 9 10 Condition is FALSE

65. Output 11 i Variable i in memory Skip the body of the lop and executes the statement jast after the loop 1 2 3 4 5 6 7 8 9 10

66. Final value of i after the complete loop Output 11 i Variable i in memory 1 2 3 4 5 6 7 8 9 10

67. Output 11 i Variable i in memory 1 2 3 4 5 6 7 8 9 10 Final output of the loop

72. The condition statement controls the execution of loop The loop executes till the condition statement is true

75. Output 1 i Variable i in memory Initialization

76. Output 1 i Variable i in memory Condition is True

78. Check it out here increment Output 1 2 i Variable i in memory

84. Output 3 i Variable i in memory 1 2 Condition is True

102. Output 11 i Variable i in memory Skip the body of the lop and executes the statement just after the loop 1 2 3 4 5 6 7 8 9 10

109. The condition statement controls the execution of loop The loop executes till condition statement is true the

112. Output 1 i Variable i in memory

113. Output 1 i Variable i in memory No condition checking at entry of the loop

114. Output 1 1 i Variable i in memory Check it out here

121. Output 3 1 2 i Variable i in memory Condition is True

139. Output 1 11 2 3 i 4 5 Variable i in memory 6 7 Stop the 8 execution of the 9 loop and 10 executes the statement just after the loop

java programming- control statements

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