Control structers in c
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Control structers in c

Control structers in c

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    Control structers in c Control structers in c Presentation Transcript

    • Disclaimer: This presentation is prepared by trainees of baabtra as a part of mentoring program. This is not official document of baabtra –Mentoring Partner Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd
    • Typing Speed Week Target Achieved 1 40 22 2 40 27 3 40 27
    • Jobs Applied Week 1 2 3 Company Designation Applied Date Current Status
    • CONTROL STRUCTURES IN C PROGRAM Name SREEJITH.K @gmail.com ksreejith7044@gmail.com www.facebook.com/username sreejith kappoor twitter.com/username in.linkedin.com/in/profilename sreejithk/76/576/b99/ Phonenumber 919562616566
    • CONTROL STRUCTURES IN C PROGRAM • C language possesses such decision making capabilities and supports the following statements known as control or decision-making statements. • There are two types of statements. • Selection statement. • Iteration statement.
    • Selection statements • It provides decision making capability to a program and they alter normal flow of control based on their conditions. They are • If • if else • if else if • switch
    • Iteration statements • It allows a set of instruction to be executed repeatedly based on some conditions. They are • For loop • While
    • If statement • The if statement is a powerful decision making statement and is used to control the flow of execution of statements. • It is basically a two-way decision statement.
    • IF ELSE The if....else statement is an extension of the simple if statement. The general form is if (condition) { True-block statement(s) } else { False-block statement(s) }
    • IF ELSE PROGRAM TO KNOW THE NUMER IS POSITIVE OR NEGATIVE • void main() { int numb; printf ("Type any Number : "); scanf ("%d", &numb); if(numb > 0) { printf ("%d is the positive number", numb); } else printf ("%d is the Negative number", numb);}
    • IF ELSE IF • This makes selection from two alternatives. • If one is selected the other will be skipped. • But if the first one is not executed the second one is selected.
    • IF ELSE IF program to print the character is uppercase or lowercase or special character Printf(“enter the character”); Scanf(“%c”,ch); If(ch>=‘a’ && ch<=‘z’) printf(“it is lower case”); Else If(ch>=‘A’ && ch<=‘Z’); printf(“it is upper case”); Else Printf(“it is special chara”);
    • Switch case • Often a break statement is used as the last statement in each case's statement list • A break statement causes control to transfer to the end of the switch statement • If a break statement is not used, the flow of control will continue into the next case
    • SWITCH • The general syntax of a switch statement is: switch ( expression ) { case value1 : statement-list1 case value2 : statement-list2 case value3 : statement-list3 case ... } If expression matches value2, control jumps to here
    • Sample program for switch Printf ("enter the game moden"); scanf ("%c“,&n); switch(n) { case '1' : printf("play game n"); break; case '2' : printf("load game n"); break;}
    • while • The syntax of while statement in C: while (loop repetition condition) statement • Loop repetition condition is the condition which controls the loop. • The statement is repeated as long as the loop repetition condition is true. • A loop is called an infinite loop if the loop repetition condition is always true.
    • An Example of a while Loop Loop repetition condition Statement Loop control variable is the variable whose value controls loop repetition. In this example, count_emp is the loop control variable. 5-20
    • For loop • The syntax of for statement in C: for (initialization expression; loop repetition condition; update expression) statement • The initialization expression set the initial value of the loop control variable. • The loop repetition condition test the value of the loop control variable. • The update expression update the loop control variable.
    • An Example of the for Loop To print the numbers printf("enter the first number"); scanf("%d",&n); printf("the numbers aren"); { for(i=n;i<=100;i++) printf("%d ",&i);}
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