KwickClips Java · 42 sec · free
How do you remove extra spaces a user typed?
Short answer. trim(), which removes spaces from the start and end.
What do startsWith and endsWith return?
true or false.
Handy string tools
| Method | Result |
|---|---|
| trim() | " hi " to "hi" |
| replace | cat to cot |
| concat("day") | Sun to Sunday |
| toUpperCase() | pen to PEN |
Remember
| They all return a new string |
| startsWith gives true or false |
A user typed their name with extra spaces. Fix it! Four tools clean up text. Trim cuts end spaces. Replace swaps characters. Concat joins. To upper case changes letters. Each gives a new string. Starts with gives true or false.
This clip is from the full lesson: The String Class and String Methods — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Information Technology (802), ICSE Class 10 Computer Applications, ICSE Class 10 Computer Applications, ICSE Class 10 Computer Applications
More KwickClips from this lesson
Why did my string stay in small letters?39 sec
Where does indexing start?43 sec
Why is == false for two identical strings?42 sec
How do you check a palindrome?41 secVoice-over is AI-generated; the script is written and checked by Kajal Ma'am. Confirm anything you plan around against your official board document. We never ask for a password or an OTP.