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What command is used to compile a Java program/

javac ProgramName.java

After compiling a Java program, which file is generated?

.class

What command is used to run a compiles Java program?

java ProgramName

What happens if you try to run a Java program without compiling it first?

Java will give a “class not found” error

What is a valid identifier in Java?

variable_1?

What is the range of values for a byte data type in Java?

-128 to 127

What is the correct way to declare a constant in Java?

final int PI = 3.14;

What data type has the highest precision in Java?

double

What is the default value of a boolean variable in Java?

false

T/F: Java uses the Unicode character set to represent characters.

True

What is used to obtain the command-line arguments in Java?

String[] args

What is the output of this code:

public class Test {

public static void main(String[] args) {

System.out.println(args[0]);

}

}

Command-line input: java Test Hello

Hello

T/F: char letter = ‘AB’; is a valid declaration of a variable in Java

False

In Java, what will be the result of the following statement?

float f = 10/4;

2.0