Fundamentals Of Object-Oriented Programming: Java and IntelliJ - String Methods

The video tutorial covers the basics of strings in Java, including how to declare string variables using the 'new' keyword and string literals. It explores various string methods such as concatenation, length, substring, trim, index, case conversion, and equality checks. Additionally, it introduces string arrays and demonstrates the use of the split method to break strings into arrays based on regular expressions.

What is one way to define a string variable in Java?

• Using the 'create' keyword

• Using the 'init' keyword

• Using the 'new' keyword

• Using the 'define' keyword

Which method is used to find the length of a string in Java?

• length()

• size()

• measure()

• count()

How can you identify a character at a specific index in a string?

• Using charAt() method

• Using indexOf() method

• Using find() method

• Using locate() method

What does the trim() method do in Java?

• Removes all special characters

• Removes all vowels in a string

• Removes leading and trailing spaces

• Removes all spaces in a string

Which method is used to convert a string to uppercase?

• toCaps()

• toUpperCase()

• toUpper()

• toCapital()

What is the purpose of the concat() method in Java?

• To compare two strings

• To split a string

• To join two strings

• To find the length of a string

How can you split a string into an array using a specific character?

• Using the break() method

• Using the partition() method

• Using the split() method

• Using the divide() method