Strings in perl

Faq.txt

Q1. What is the syntax for multiline strings?
ans: syntax: <<END;
             .......
             .......
             END
Q2.What is the syntax of Substitution operator ( s ):
ans: syntax : s/word/pattern/;

Q3.What operation does rindex function perform?
ans: This function will give the rear/last index of the specific character or a string.

Q4.How can we concatenate two strings in perl?
ans: We should use . dot operator to concatenate two string.

Q5.What does ufirst function do?
ans: ufirst function will convert the first character of a string to uppercase letter.

gistfile1.txt

Q1.Q1.What will be the ouput of the statement:
      print "Hello world " x 3 ,"\n";

a) Hello world
   Hello world
   Hello world

b) Hello world
c) Hello world Hello world Hello world
d) none of the above

Q2.What will be the output:
    my $str = "Hello Pepcoderss";
    for(my $i = 0; $i <3; $i++)
    {
      chop $str;
    }
    print $str;

a) Hello pepcoder
b) lo pepcoderss
c) Hello pepcode
d) lo pepcode

ans: c)

Q3.What will be the output of the statement:
        
        my $str="hello Hello heLlo HELLO";
        $str=~ s/hello/bye/;
        print $str;
 
a) bye bye bye bye
b) bye bye heLlo HELLO
c) bye Hello heLlo HELLO
d) bye Hello heLlo bye

ans: c)

Q4.What will be the output of the statement:
          my $str="helo";
          print ++$str;
          
 a) ielo
 b) ifmp
 c) help
 d) ielp
 
 ans: c)
 
 Q5.What will be the output of this statement:
        my $str="hellp pepcoder";
        print substr($str, 2,3);
 a) l
 b) llp
 c) ll
 d) none of the above
 
 ans: b)