The Complete Java Developer Course: From Beginner to Master - String Methods, Part 1

The Complete Java Developer Course: From Beginner to Master - String Methods, Part 1

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

This video tutorial covers the basics of string methods in Java, focusing on charAt, length, equals, and compareTo. It explains how strings are viewed as arrays of characters and how Unicode values are used for string comparison. The tutorial includes practical coding examples and exercises to reinforce learning, culminating in a challenge to apply the concepts discussed.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of data does the string class represent in Java?

Graphical data

Boolean data

Textual data

Numerical data

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method would you use to find the number of characters in a string?

compareTo()

length()

equals()

charAt()

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are lowercase letters compared to uppercase letters in Unicode?

Lowercase letters have smaller numeric values

Lowercase letters have larger numeric values

Uppercase letters are not encoded

Uppercase letters have larger numeric values

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'equals' method return when two strings are identical?

An integer

A character

A boolean

A string

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 'compareTo' when the first string is lexicographically greater than the second?

A positive number

Zero

An error

A negative number

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the practical example, what is the output when comparing 'John Baugh' to 'Rob Percival' using 'compareTo'?

'John Baugh' is greater

'Rob Percival' is greater

They are equal

Comparison is not possible

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of the 'compareTo' method?

To compare two strings lexicographically

To check if two strings are identical

To find the length of a string

To convert a string to uppercase

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