Question

Question for Begginners!!

Predict the output:-

class check {
public static void main (String ar []){
String k="";
System.out.println(k.length());
}
}

Difficulty Level:Easy​
•Don't be greedy of points
•Good luck!!

Answer 1

$\texttt{\textsf{\large{\underline{Answer}:}}}$

• Output for the cøde is - 0
• length( ) fuñction returns the length of string. Here, the string k is empty. So, length( ) returns 0.

$\texttt{\textsf{\large{\underline{Learn More}:}}}$

String – A string is an object that represents collection of characters.

Some string fuñctions –

• charAt( ): Returns the character from the string at specific index. Returns error if the index is out of range.

• toLowerCase( ): Returns new string converted to lower case.

• toUpperCase( ): Returns new string converted to upper case.

• compareTo( ): Compares two strings lexicographically.

• contains( ): Check whether a string contains a specific set of characters.

• endswith( ): Check whether a string ends with another string.

Answer 2

0 is your answer as space is also counted here and arrays start at 0. Therefore, the length will be 0.