Controlstatment in c
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Control statements in C allow changing the order of execution based on conditions or repeating a group of statements. The main types of control statements are selection structures like if/else which execute one or the other block based on a condition being true or false, and looping structures like while, do-while and for loops which repeat a block of code either indefinitely or a specified number of times. Nested loops can also be used to repeat blocks of code multiple times in both the inner and outer loops.
![START
Money Received 15000
Received
Money>=10000
?
Holiday Enjoyed
END
Condition not Satisfied
[False] Condition Satisfied
[True]
Holiday Trip Problem](https://image.slidesharecdn.com/controlstatmentinc-170213201942/85/Controlstatment-in-c-10-320.jpg)
Controlstatment in c
- 1. Control Statement in C Lecture : 7 Md. Al-Imran Roton Lecturer, CSEDIU Bangladesh
- 2. CONTROL STATEMENT All the statements written in C program executes from top to bottom one by one
- 3. CONTROL STATEMENT There are some situations where one may have to Change the order of execution based on certain conditions OR Repeat a group of statements until certain conditions are satisfied.
- 4. TYPES OF CONTROL STATEMENT
- 5. IF SELECTION STRUCTURES 1) A simple if structure is called a single-selection structure because it either selects or ignores a single action.
- 6. IF/ELSE SELECTION STRUCTURESThe if / else structure is called a double- selection structure because it selects between two different actions.
- 7. IF/ELSE SELECTION STRUCTURES Diagram of IF and Else
- 8. REAL LIFE EXAMPLENeed to make a decision to go which way
- 9. Real life example If(girl==educated&&beautiful&&smart) { then, I agree to marry her. } Else { I dont agree to marry her. }
- 10. START Money Received 15000 Received Money>=10000 ? Holiday Enjoyed END Condition not Satisfied [False] Condition Satisfied [True] Holiday Trip Problem
- 11. Example code
- 12. Nested IF / ELSE Lecturer : 8
- 14. Real life example If(girl==educated) { If(girl==beautiful) { If(girl==smart) I agree to marry her. Else Think about consideration. } Else Talk with parents. } Else Rejected .
- 15. Elseif condition
- 17. Example
- 18. Switch statement Syntax switch(expression) { case value-1: block-1; break; case value-2: block-2; break; .. .. default block; break; } Statement - X
- 19. Switch statement
- 20. Switch statement
- 21. Example
- 22. Example
- 23. PRACTICE EXAMPLE Big Bazzar gives festival discount on purchase of their products in the following percentages i.If purchase amount < 1000 than 5% discount ii.If purchase amount >=1000 than but <3000 then 10% discount iii.If purchase amount >=3000 but <5000 then 12% discount iv.If purchase amount > 5000 then 15% discount v.Make an university grading system.
- 24. Thank you
- 26. Break Statement It is an jump instruction and can be used inside the switch and loop statements. The execution of the break statements causes the control transfer to the statement immediately after the loop.
- 27. Break Statement
- 28. Break Statement
- 29. Break Statement
- 30. Continue Statement It is a jump statement. It is used only inside the loop. Its execution does not exit from the loop but escape the loop for that iteration and transfer the control back to the loop for the new iteration.
- 32. Goto Statement It is used the alter the normal sequence of flow by transferring the control to some other part of the program unconditionally. It is followed by the label statement which determine the instruction to be handled next after the execution of the goto statement.
- 33. Goto Statement
- 34. Goto Statement
- 35. Example
- 36. Thank You
- 38. Why Looping HA HA HA HA HA HA HA HA HA HA HA HA
- 39. Why Looping Printf(HA HA ); Printf(HA HA ); Printf(HA HA ); Printf(HA HA ); Printf(HA HA ); Printf(HA HA ); Need to write 6 time printf() function. (problem) Solution : Repitition/Looping.
- 40. Why looping
- 41. Types of Looping While Do while For
- 42. While loop
- 43. While loop
- 44. Infinity While loop while(1) { statements; ........ } Question: How it will stop?
- 45. Infinity While loop Solution : Use break to exit from the loop while(1) { statements; ........ if(condition) break; }
- 46. Example
- 47. Do while loop Difference from while:
- 48. Do while loop
- 49. Do while loop
- 50. Example
- 51. Thank you
- 53. Syntax There are 3 parts in a for loop. 1. Initialization. 2. Condition. 3. Increment / Decrement.
- 56. Diagram of for loop
- 57. Diagram of for loop
- 58. Infinity for loop for( ; ; ) { statements; ........ } Same question How to stop the loop. Answer is also same use break.
- 59. Example Display 1 to 10.
- 60. Example Sum 1 to 10.
- 61. Example Sum 1 to n.
- 62. Thank you
- 63. NESTED FOR LOOP Lecture: 12
- 64. What is nested loop There exits multiple loop like 2,3,4.so on. 1. Outer loop. 2. Inner loop.
- 65. Outer/Inner loop
- 66. Diagram of nested for loop
- 67. Example
- 68. Example
- 69. Example
- 70. Example
- 71. Some Interesting practice Example
- 72. Some Interesting practice Example
- 73. Some Interesting practice Example
- 74. Some Interesting practice Example
- 75. Some Interesting practice Example
- 76. Thank you