Strings

Question 1

What is the a string terminated by?

Answer 1

Null Character.

Question 2

What does length() do?

Answer 2

Used to return the length of a string.

Question 3

What does toLowerCase() do?

Answer 3

Used to return string in lowercase.

Question 4

What does toUpperCase() do?

Answer 4

Used to return string in uppercase.

Question 5

What does contains() do?

Answer 5

Used to check the existence of another string.

Question 6

What does endsWith() do?

Answer 6

Used to check if a string ends with a specific character.

Question 7

What does index() do?

Answer 7

Used to check the index of a character in a string.

Question 8

What does replace() do?

Answer 8

Used to replace a character in the original string.

Question 9

What does substring() do?

Answer 9

Used to return a substring of the original string.

Question 10

What does compareTo() do?

Answer 10

Compares an instance with a specified string and checks whether it follows in the same sort order as the specified string.

Question 11

Explain the possible values of compareTo()?

Answer 11

Value is less than 0: Precedes order.
Value is greater than 0: Follows order.
Value is equal to 0: Equal in order.