TutorMe homepage
Subjects
PRICING
COURSES
SIGN IN
Start Free Trial
Kevin T.
Senior Undergrad at USC pursuing Bachelor's in Computer Engineering and Computer Science
Tutor Satisfaction Guarantee
Java Programming
TutorMe
Question:

What does it mean for a String in Java to be immutable?

Kevin T.
Answer:

Immutable Strings in java basically means once a String is created, the String object cannot be changed no matter what. However, the reference to the String object can be changed. For example: String s = "some string"; //created an immutable string object. s variable references the object s = "a new string"; //created another immutable string object. s variable drops reference to "some string" object and now references "a new string" object

C++ Programming
TutorMe
Question:

What is the output of the following code snippet? int number= 5; cout << number++ << endl;

Kevin T.
Answer:

Output: 5 The output is 5 because number is initialized to 5, and is only incremented after the cout line because number++ means number is incremented afterwards. If on the other hand we were to replace number++ with ++number, the output would be 6 because ++number means number is incremented beforehand.

C Programming
TutorMe
Question:

Any program that can be completed via while loop can also be completed via for loop

Kevin T.
Answer:

true

Send a message explaining your
needs and Kevin will reply soon.
Contact Kevin
Ready now? Request a lesson.
Start Session
FAQs
What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Session" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.