Decision Control Statements in C Language
The Decision statement checks the given condition and then executes its sub block. The decision statement determines the statement to be executed after True or False of a given condition.
Types if decision statement:
- If statement
- If-else statement
- Nested if-else statement
- Break statement
- Continue statement
- Goto statement
- Switch() statement
- Nested switch ()case
- Switch() case and Nested if
| Statement | Syntax |
| If statement | if(condition) Statement; |
| If-else statement | If (condition) |
| { | |
| Statement 1; | |
| Statement 2; | |
| } | |
| else | |
| { | |
| Statement 3; | |
| Statement 4; | |
| } | |
| Nested if-else statement | If (condition) |
| { | |
| Statement 1; | |
| Statement 2; | |
| } | |
| Else if (condition) | |
| { | |
| Statement 3; | |
| Statement 4; | |
| } | |
| Else | |
| { | |
| Statement 5; | |
| Statement 6; | |
| } | |
| Break statement | Break; |
| Continue statement | Continue; |
| Goto statement | goto label; |
| Switch() statement | Switch (variable or expression) |
| { | |
| Case constant A: | |
| Statement; | |
| Break; | |
| Case constant B: | |
| Statement; | |
| Break; | |
| Default: | |
| Statement; | |
| } |
LOOP CONTROL STATEMENTS
The loop control statements in C are used to perform looping operations until the given condition is true. Once the condition is false, the control loop exits the statement.
Types
- For loop
- Nested for loops
- While loop
- do while loop
- do-while statement with while loop
| Statement | Syntax |
| For loop | For(initialize counter; test condition; re-evaluation parameter) { Statement; Statement; } |
| Nested for loop | for(initialize counter; test condition; re-evaluation parameter) { Statement; Statement; for (initialize counter; test condition; re-evaluation parameter) Statement; Statement; } } |
| While loop | While (test condition) { Body of the loop } |
| Do while loop | do { Statement; } While(condition); |
| Do-while with while loop | Do while(condition) { Statement; } While (condition); |
