Python3 break and continue Statements

Python break and continue Statements

break and continue statements

             In Python , break and continue statements can alter the flow of normal loop.

Loop iterate over a block of code until test expression is false, but sometimes we wish to terminate the current iteration or even the whole loop without checking test expression.

 

The break and continue statements are used in these cases.

Python Break Statement

    Syntax:

                break

Flow Chart:  

                                     

Working:                 

  

Eg:

       nums=[1,2,3,4]

       for num in nums:

             if num==4:

                  break

             print(num)

       else:

             print("in the else block")

       print("outside of for loop")

 

Output:: 1

                       2

                       3

                       outside of for loop

 

 Python program to check given number is prime number or not (using break):

       num=int(input("enter a number: ")
       isdivisible=False;
       i=2;
       while i<num:
              if num % i==0:
                    isdivisible=True;
                    print("{} is divisible by {}".format(num,i))
                    break;
              i+=1;
       if isdivisible:
            print("{} is not a prime number".format(num))
       else: 

            print("{} is a prime number".format(num))

output:: enter a number: 16

             16 is divisible by 2

              16 is not a prime number  

Python Continue Statement

    Syntax:

                       continue

Flow Chart:

                                       

Working: 

                               

Eg:

       nums=[1,2,3,4,5]

       for num in nums:

            if num%2==0:

                 continue

            print(num)

       else:

            print("else block")

output:: 1

               3

               5

               else block