Question: 2. For methods parameters are specified in the method definition, arguments are provided during a method call arguments are specified in the method definition, parameters
2.
For methods
| parameters are specified in the method definition, arguments are provided during a method call | ||
| arguments are specified in the method definition, parameters are provided during a method call | ||
| arguments override parameters | ||
| parameters encapsulate arguments |
5
Class methods have access to instance variables.
True
False
6 A method stub is
a) a short method
b)a method with an abrupt end
c)a method whose header has not yet been written
d) a method whose statements have not yet been written
7 An abstract class
| can always be instantiated as an object | ||
| can sometimes be instantiated as an object | ||
| can often be instantiated as an object | ||
| can never be instantiated as an object |
8 When a derived class defines a member method that has the same name, parameters, and return type as a base class's method, the member method is said to
| overload the base class's method | ||
| overreach the base class's method | ||
| override the base class's method | ||
| overshadow the base class's method |
9
What would be the best code to print out all the elements of an array
| for (int i = 0 ; i <= arry.length ; i++ ) System.out.println(arry[i]); | ||
| for (int i = 0 ; i < arry.length ; i++ ) System.out.println(arry[i]); | ||
| for (int i = 1 ; i < arry.length ; i++ ) System.out.println(arry[i]); | ||
| for (int i = 1 ; i <= arry.length - 1 ; i++ ) System.out.println(arry[i]); |
10)
Which code correctly computes the sum of elements in an array ?
| int sum = ary[0]; for (for int i = 0 ; i <= ary.length; i++ ) sum += ary[i]; | ||
| int sum = ary[0]; for (for int i = 0 ; i < ary.length; i++ ) sum += ary[i];
| ||
| int sum = 0; for (for int i = 0 ; i <= ary.length; i++ ) sum += ary[i];
| ||
| int sum = 0; for (for int i = 0 ; i < ary.length; i++ ) sum += ary[i];
|
11 Public methods and variables of a given class can be accessed by any other class.
True
False
12
Class methods have access to instance variables.
True
False
13
Object behavior is represented by methods.
True
False
14
Object instances are created using the new keyword.
True
False
15
Local variables are not automatically initialized.
True
False
16 Class constructors must be declared with a return type equal to the class.
True
False
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