Java for Geeks and Dummies

How many percent of Fortune 500 companies use Java?

• 50%
• 40%
• 80%
• 90%

What was the intended name of Java?

• Oak
• Pascal
• C
• C++

Which of the following correctly initializes an array to contain four elements each with value 0?
I. int[ ] arr = { 0, 0, 0, 0};
II. int[ ] arr = new int[4];
III. int[ ] arr = new int[4];
     for(int i = 0; i < arr.length; i++)
       arr[i] = 0;

• I only
• I and II only
• I, II, and III
• I and III

Create an array of 12 strings called months.

• String[] months = new String[12];
• String months = new String[12];
• String[] months = new String[];
• String[12] months = new String[];

An object is an instance of a:

• parameter
• method
• class
• application

Whats the output for the following:
String myCat = "Kizzy Cat";
String partOfmyCat = Mcat.substring(4)
System.out.Println(partofMyCat); 

• prints zzz Cat
• prints yCat
• Error " Exception in main thread"
• prints y Cat

Whats the output for the following:
String myCat = "Kizzy Cat";
String partOfmyCat = Mcat.substring(4)
System.out.Println(partofMyCat); 

• prints zzz Cat
• prints yCat
• Error " Exception in main thread"
• prints y Cat

These control the behavior of a program.

• class
• object
• method
• void

This is the act of creating an object.

• overflow
• instantiation
• encapulsation
• objection

String s1 = "Elephant";  
String s2 = "elephant";
String s3 = "aardvark"; 
//underscore represents space in output below

System.out.println(s1.charAt(3));

• h
• p
• a
• error message