How do you correctly define a multidimensional array?

String[][] table = new String[10][10];

Regarding visibility of accessors of variables, what is NOT correct?

private: can be seen by objects of other classes

Please see the following method call. Which method definition begin is NOT correct?

private static int startCourse(int students)

What does NOT correctly describe a class?

A class is a concrete real world object

Consider the following code in the picture, which next line is NOT possible (throws Exception)

System.out.println(myNumber[12]);

Regarding static fields which statement is correct?

It is a part of the class, shared by all instances

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Fontys Venlo - Programming Concepts - week 7

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Questions 11

Answers

1
How do you correctly define a multidimensional array?
String[][] table = new String[10][10];
String[10][10] table = new String[10][10];
String[10][10] table = new String[][];
String[][] table = new String[][];
2
Regarding visibility of accessors of variables, what is NOT correct?
public: cannot be seen by objects of other classes
private: can be seen by objects of other classes
private: accessible only by object of the same class.
public can be seen by whole world
3
How do you correctly create an object of a Ninja class called Kai?
Ninja kai = new Ninja("Kai")
Ninja n = Ninja.newInstance()
Kai ninja = new Kai()
new Ninja = Kai("Ninja");
4
Please see the following method call. Which method definition begin is NOT correct?
private static boolean startCourse(int numberOfStudents)
private static boolean startCourse(int num)
private static boolean startCourse(int students)
private static int startCourse(int students)
5
Did you read chapter 09 of the book?
No
Yes
6
What does NOT correctly describe a class?
A class is a concrete real world object
A class is similar to a blueprint
A class is similar to a template
A class is a general concept of a real world object
7
What is a correct array definition?
int numbers = new int[];
int[] numbers = new int[];
int numbers = new int[20];
int[] numbers = new int[20];
8
Consider the following code in the picture, which next line is NOT possible (throws Exception)
System.out.println(myNumber[11]);
System.out.println(myNumber[1]);
System.out.println(myNumber[0]);
System.out.println(myNumber[12]);
9
How is the method called which is named exactly like the Class, here Ninja? (see picture)
Garbage Collector
Instance Method
public method
Constructor
10
Regarding static fields which statement is correct?
It is a part of the class, shared by all instances
Static fields can only be added to objects
It is part of an object, connected to an instance
Has for each instance of a class a different value
11
What is NOT a correct array definition?
int[] myIntArray = new int[]{1,2,3};
int[] myIntArray = new int[3];
int[] myIntArray= {1,2,3};
int[] myIntArray = new int[];

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