Java Basics

What is the keyword "final" used for in Java?

• identify a constant

• identify an integer

• identify a string

• Identify a final answer

The keyword "method" is another name for

• an object

• a class

• a function

• a variable

Java was originally named:

• Coffee

• Oak

• New C++

• Duke

Which of the following is NOT a numeric data type

• int

• double

• float

• decimal

Which of the following is incorrect?

• int count = 50.0;

• int salary = 50_000;

• int salary = 50_00;

• all of these are incorrect

The numeric type int uses how many bits?

• 31

• 32

• 63

• 64

Which of the following is an example of a reference variable declaration?

• int count;

• String name;

• float gpa;

• char firstInitial;

Where does a java program start executing instructions from:

• class

• source file

• main method

• object

We are use Scanner Library in java for...

• Give permissions to the user
• Correcting software errors
• Allows user to read data
• Allows the user to enter data

When we want to print in Java, we use the code ......

• system.out.print();
• System.out.println();
• System.Out.Printf();
• System.out.show();