The Complete Java Developer Course: From Beginner to Master - User Input

The Complete Java Developer Course: From Beginner to Master - User Input

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

Created by

Wayground Content

FREE Resource

This video tutorial covers the use of operators in Java, focusing on arithmetic, relational, and logical operators. It introduces user input handling using the Scanner class, explaining how to read strings and integers from the console. The tutorial addresses common input bugs and provides solutions, including a challenge to handle real number input and perform operations. The video emphasizes the importance of importing classes and using standard input and output streams in Java.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three major categories of operators in Java?

Arithmetic, Relational, Logical

Arithmetic, Conditional, Logical

Relational, Conditional, Logical

Arithmetic, Relational, Conditional

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which Java class is used to obtain user input from the keyboard?

InputReader

Console

Scanner

BufferedReader

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of importing the java.util package in Java?

To use the Scanner class

To use the Math class

To use the System class

To use the String class

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method of the Scanner class is used to read a full line of text?

next()

nextLine()

readLine()

getLine()

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What common bug occurs when reading an integer followed by a string using Scanner?

The input stream is closed

The string input is skipped

The integer is not read

The program crashes

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you fix the issue of skipping string input after reading an integer with Scanner?

Close and reopen the Scanner

Use a different Scanner object

Use next() instead of nextLine()

Call nextLine() after reading the integer

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method of the Scanner class is used to read an integer?

nextInt()

readInt()

getInt()

int()

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