CSC 1350 Final Exam Question and answers rated A+ 2024
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Course
Csc
Institution
Csc
CSC 1350 Final Exam Question and answers rated A+ 2024 CSC 1350 Final Exam (Comprehensive)
Who writes the the source code(program), which is a .java file(s)? - correct answer The programmer
What does Java run on? - correct answer Java runs on a target machine, it runs on the java virtua...
CSC 1350 Final Exam (Comprehensive)
Who writes the the source code(program), which is a .java file(s)? - correct
answer ✔The programmer
What does Java run on? - correct answer ✔Java runs on a target machine, it
runs on the java virtual machine (JVM)
what creates a byte code file (.class)? - correct answer ✔The Java compiler
creates a bytecode file (.class), this is an object file the JVM can run
What is the object code? - correct answer ✔The .class file is object code,
object code is a program that the computer understands
T/F: Java can run on any machine with a Java interpreter? - correct answer
✔true
T/F: In Java, every source file can contain at most one public class - correct
answer ✔True
T/F:The name of the public class must match the name of the file containing
the class - correct answer ✔True
How would you write a main method (which is required for every program)? -
correct answer ✔public static void main (String[] args) {
}
T/F: When the application begins, the instructions, called statements, in the
"main" method are executed - correct answer ✔True
,What is a statement? - correct answer ✔an executable instruction that tells
the compiler what to perform
Statements are executed how many times? - correct answer ✔one by one
What is at the end of a statement? - correct answer ✔;
T/F:Every expression and statements must end with a semicolon ";" - correct
answer ✔true
T/F:"{" and "}" must come in pairs, they mark a block of code - correct answer
✔true
What is the first programs all programmers will write? - correct answer
✔HelloWorld
public class HelloWorld
{ public static void main(String[] args) { System.out.println("Hello World"); } }
how to print without a new line? - correct answer ✔System.out.print
how to print while adding a new line? - correct answer ✔System.out.println
how to print while adding formatting? - correct answer ✔System.out.printf
,How would you write Hello World - correct answer ✔public class HelloWorld
{ public static void main(String[] args) { System.out.print("Hello");
System.out.print(" World ");
}
}
How would you write
Hello
World - correct answer ✔public class HelloWorld {
public static void main(String[] args) { System.out.println("Hello");
System.out.println(" World ");
}
}
What are comments? - correct answer ✔A way for you to leave notes about
what your code is doing in plain English, so other people can understand it.
what does // do in a comment (single line)? - correct answer ✔Single line
comments are denoted with double forward slashes //text that will not run
what does // do in a comment (Multi-line)? - correct answer ✔Multi-line/block
comments are denoted by a forward slash and an asterick
/*multi-line comment*/
T/F: Javadoc comments can be exported to an html document - correct
answer ✔true
, Standard input or STDIO - correct answer ✔-Standard input provides a way
to give information to the machine
-Input is often done through a keyboard
Standard output - correct answer ✔-Standard output provides a way to give
information back to a user
-Output is often provided and observed through a monitor
How would you use standard in/output in java? - correct answer ✔1. Use of
standard in/out requires importing a library in Java
2. This library is a collection of code that enables streaming data in and out
3.The statement import Java.util.Scanner will often appear in Java code to
import this library and use the standard in and out streams
4. To take input you must declare a Scanner object
How do you declare a scanner object to take user input? - correct answer
✔Scanner in = new Scanner(System.in)
What are the methods to take in different types of data? - correct answer
✔in.next
in.nextLine
in.next - correct answer ✔takes input until a space
in.nextLine - correct answer ✔takes input until a newline ("\n")
What are Compile errors? - correct answer ✔-are errors in code that prohibit
the compiler from completing the compilation process
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