php mcq questions with answers


                                


Which of the following snippets are the correct way to convert a Single into a String?



    

  1. 

    Single f = 9.8f; 
String s;
s = (String) (f);
    

    2. 

  2. 

    Single f = 9.8f; 
String s;
s = Convert.ToString(f);
    

    3. 

  3. 

    Single f = 9.8f; 
String s;
s = f.ToString();
    

    4. 

  4. 

    Single f = 9.8f; 
String s;
s = Clnt(f);
    

    5. 

  5. 

    Single f = 9.8f; 
String s;
s = CString(f);
    

    6. 





                                
A.1, 2
B.2, 3
C.1, 3, 5
D.2, 4
                              
Click To Show Ans:B

                        
                                


Which of the following will be the correct output for the C#.NET code snippet given below?



String s1="Kicit";
Console.Write(s1.IndexOf('c') + " "); 
Console.Write(s1.Length);




                                
A.3 6
B.2 5
C.3 5
D.2 6
E.3 7
                              
Click To Show Ans:B

                        
                                


Which of the following is correct way to convert a String to an int?



    

  1. 

    String s = "123"; 
int i;
i = (int)s;
    

    2. 

  2. 

    String s = "123";
int i;
i = int.Parse(s);
    

    3. 

  3. 

    String s = "123"; 
int i;
i = Int32.Parse(s);
    

    4. 

  4. 

    String s = "123"; 
int i;
i = Convert.ToInt32(s);
    

    5. 

  5. 

    String s = "123"; 
int i;
i = CInt(s);
    

    6. 





                                
A.1, 3, 5
B.2, 4
C.3, 5
D.2, 3, 4
                              
Click To Show Ans:D

                        
                                
Which of the following statements about a String is correct?
                                
A.A String is created on the stack.
B.Whether a String is created on the stack or the heap depends on the length of the String.
C.A String is a primitive.
D.A String can be created by using the statement String s1 = new String;

E.A String is created on the heap.
                              
Click To Show Ans:E

                        
                                
Which of the following statement is correct about a String in C#.NET?
                                
A.A String is mutable because it can be modified once it has been created.
B.Methods of the String class can be used to modify the string.
C.A number CANNOT be represented in the form of a String.
D.A String has a zero-based index.
E.The System.Array class is used to represent a string.
                              
Click To Show Ans:D