Headfirst Java

Question 1

What is the difference between scripting languages and programming languages ?

Answer 1

All scripting languages are programming languages.

Scripting languages do not require the compilation step and are interpreted. They can be server-side or client side.

Question 2

What does server-side mean?

Answer 2

Scripts are run on the server and minimize the workload of the browser

Question 3

What does client-side mean?

Answer 3

Scripts are run on the browser

Question 4

What are the 4 steps for how Java works?

Answer 4

Step 1: Source - Create a source document (Java language)

Step 2: Compiler (javac) -the compiler checks for errors and won’t compile until it knows that everything will run correctly

Step 3: Output (code) - The compiler creates a new document coded into java bytecode.

Step 4: Virtual machine - The machine that has a JVM implemented with software, can read and run the bytecode.

Question 5

What is a source code file?

Answer 5

A source code (.java file), holds one class definition. The class represents a piece of your program.

Question 6

What are statements?

Answer 6

Declarations, assign, method calls, etc.

Question 7

What are the 3 looping structures in Java?

Answer 7

for, while, do-while

If some condition is true, you do everything inside the loop block. The looping depends on the condition test, which must result in either true or false.

Question 8

What is a branching statement example in Java?

Answer 8

if/else statement

Question 9

What does AWT mean?

Answer 9

Abstract Window Toolkit

Question 10

What is an applet?

Answer 10

An applet is a Java program that can be embedded into a webpage. It’s embedded into an HTML page by using the applet or object tag and hosted on a web server