Core Java Programming Course- String Conversion Operations

This video tutorial covers the essential concepts of string conversion operations, focusing on converting integers to various string formats such as normal, binary, hexadecimal, and octal strings. It also explains the reverse process of converting these strings back into integers using Java's parse methods. The tutorial highlights the importance of these operations in interviews and practical applications.

What is the significance of string conversion operations in programming interviews?

• They are frequently asked and are important.

• They are only relevant for advanced programmers.

• They are considered a basic concept.

• They are rarely asked in interviews.

Which method is used to convert an integer to a binary string?

• Integer.toBinaryString()

• Integer.toHexString()

• Integer.toString()

• Integer.toOctalString()

What is the output of converting the integer 100 to a hexadecimal string?

• 100

• 64

• 11100100

• 144

Which method is used to convert a normal string back to an integer?

• Integer.toHexString()

• Integer.toBinaryString()

• Integer.parseInt()

• Integer.toString()

What radix is used for converting a binary string to an integer?

• 10

• 8

• 16

• 2

How does Java know a string is of the binary number system during conversion?

• By checking the string length

• By default settings

• By providing the radix 2

• By using a special method

What is the base used for converting an octal string to an integer?

• 16

• 10

• 8

• 2