1)
පුනර්කරණය -The While loop සඳහා අදාල ගැටඵ - problems for Iteration
a.
X=5
While x <10:
x=x+1
print x
Print (“end of the while”)
b.
number =1
value= int (input("Enter the last value : - "))
while (number <=value):
print (number)
number = number+ 1
print("done")
b.
i = 4
while i < 9:
print(i)
i = i+2
13.
Break සහ continue යන විධානයන්
හදුනා ගැනීම සදහා - Identify Break and continue commands
a.
while 1:
print 'Spam'
answer = input('Press y to end this loop')
if answer == 'y':
print ('Fries with that?')
break
print ('Have a ')
print ('nice day!')
b.
while True:
s = input(‚Enter something : ‚)
if s == ‚quit‚:
break
if len(s) < 3:
print(‚Too small‚)
continue
print(‚Input is of sufficient length‚)
# Do other kinds of processing here…
14.
range() වලින් කරන්නේ කුමක්ද what is meant by range() function in python.
a.
range(1,10)
list(range(1,10))
list (range(3,67,5))
15.
For ලූපය හදුනා ගැනීම සඳහා අදාල ගැටඵ - this program
is used to identify for loop
a.
for someChar in “Hello World”:
print someChar
b.
for i in range(1, 5):
print(i)
else:
print(‚The for loop is over‚)
c.
words =['The', 'cat', 'sat', ' on', 'the', 'mat.']
for word in words:
print (word)
d.
for c in range (1,6):
if c == 3:
continue
print c
e.
li= ['s','r','t']
for i in li:
print (i)
16.
දශමය සංඛ්යාවක් ද්විමය සංඛ්යාවකට හැරවීම-
How to convert decimal to binary
a.
x= int (input("Enter and integer"))
while x!=0:
bn=""
while x>1:
q= int (x/2)
r = x%2
bn =str(r) + bn
x= q
bn=str(x) +bn
print ("binarynumber",
bn)
x= int (input("Enter and
integer"))
17.
Function භාවිතය -
practice how to use Functions in python
a.
def cube( y ):
return y * y * y
for x in range(1,6):
print (cube(x))
b.
def printmax(a,b):
if (a>b):
print(a,'is maximum')
elif (a== b):
print(a,'is equal to',b)
else:
print(b ,"is
maximum")
c.
def add_ten(number):
return number +10
def add_five(number):
return number +5
#------------------------
a = int (input ( "Enter
anumber"))
b=add_ten(a)
c= add_five(add_ten(a))
print ("a=",a
,"b=" ,b ,"c=" ,c)
18.
List භාවිතය - using lists
a.
primes =[2,3,5,7,11,13,17]
print (type(primes))
print (primes[3])
print (len(primes))
primes[0]= "sdf"
print (primes[0])
del primes[3]
print( primes[3])
primes.append(19)
print (primes [6])
print(primes)
primes.reverse()
print(primes)
del primes [6]
primes.insert(2,29)
primes.sort()
print(primes)
primes.remove(11)
print(primes)
help(primes)
print(sorted(primes))
primes = primes+ [31,37,41]
print(primes)
newlist= list('hello')
print(newlist)
print(list('hello'))
print('h' in newlist)
b.
>>> x = [1,'hello', (3 + 2j)]
>>> x
[1, 'hello', (3+2j)]
>>> x[2]
(3+2j)
>>> x[0:2]
[1, 'hello']
19.
Tuples භාවිතය -using tuples
a.
>>> x = (1,2,3)
>>> x[1:]
b.
tu = (23, ‘abc’, 4.56, (2,3), ‘def’)
tu[1]
c.
>>> t = (23, ‘abc’, 4.56, (2,3),
‘def’)
>>> t[2] = 3.14 #IMMUTABLE
d.
e.
20.
Dictionaries
භඳුනා ගැනීම - Indentify what are
dictionaries in python
a.
>>> d = {1 : 'hello', 'two' : 42, 'blah' : [1,2,3]}
>>> d
>>> d['two'] = 99
>>> d
>>> d[7] = 'new entry'
>>> d
>>> d 1={1: 'hello', 2: 'there', 10: 'world'}
>>> del(d[2])
>>> d
need more ?
need more ?
