Selection Statements

• Selection Statements


  These statements enable developers to create dynamic and responsive code by allowing the program to make decisions (selection) and repeat tasks (iteration) based on specified conditions.
• Iteration Statements


  These statements enable developers to create dynamic and responsive code by allowing the program to make decisions (selection) and repeat tasks (iteration) based on specified conditions.
• Selection and Iteration Statements

  • Fundamental programming constructs that control the flow of a program's execution
  • Enable developers to create dynamic and responsive code
• IF Statement


  1. Check condition

  2. If condition is true, execute statements inside "if" body

  3. If condition is false, skip statements inside "if" body
• IF Statement


  • If age >= 18, print "You are eligible to vote."

  
• If else Statement


  1. Check condition

  2. If condition is true, execute statements inside "if" body

  3. If condition is false, execute statements inside "else" body
• If else Statement


  In this case, since age is 16, the message "You are not eligible to vote." will be printed.

  
• else...if Statement



  1. Check multiple conditions
  2. Execute first matching condition's statements
• else...if Statement 


  Here, the message "Grade: B" will be printed because the score is 85.

  
• Nested if else Statement


  • When an if else statement is present inside the body of another “if” or “else” then this is called nested if else.
  • Nesting is the practice of enclosing several if-else statements within an if-else statement
• Nested if else Statement


  This example will print "Positive even number" because number is 10, which is positive and even.

  
• Switch Statements 


  • Used when there are multiple options and a different task needs to be performed for each option
  • Each value is called a case, and the code associated with the first matching case is executed
  • If no match is found, an optional default case can be executed
• Switch Statements


  This code will print "Thursday" because the day is 4.

  
• Break Statement


  • Used to terminate a switch statement or a loop immediately
  • When encountered within a case block, the control exits from the switch statement
• Default Case



  Executed in a switch statement if none of the case values match the switch expression