QUIZ1 - Object Oriented Programming (OOP)

Name (SURNAME, FNAME MI)

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What is the extension of java code files?

• .js
• .txt
• .class
• .java

Which Java keyword is used to access features of a package?

• get
• import
• extends
• All of these

Which of the following is the correct syntax to create a variable in Java?

• var name;
• int name;
• var name int;
• All of these

Which class in Java is used to take input from the user?

• Scanner
• Input
• Applier
• None of these

What will be the output of following Java code? public class Main { public static void main(String[] args) { String str = "Hello"; str = "Bye"; System.out.println(str); } }

• Hello
• Bye
• Error
• All of these

What will be the output of following Java code? public class ConcatNull { public static void main(String[] args) { String str1 = "include"; String str2 = "help"; System.out.println(str1 + str2); } }

• includehelp
• include
• help
• None of these

This is a JAVA KEYWORD that indicated the beginning of a class definition

• int
• class
• main
• method

Which Scanner class method is used to read integer value from the user?

• next()
• nextInteger()
• nextInt()
• readInt()