Question 1

If method A calls method B,and method B calls method C,and method C calls method D,when method D finishes,what happens?

Accepted Answer

A)  control is returned to method A 
B)  control is returned to method B 
C)  control is returned to method C 
D)  the program terminates 
A)  control is returned to method A 
B)  control is returned to method B 
C)  control is returned to method C 
D)  the program terminates

Question 2

When an argument value is passed to a method,the receiving parameter variable is

Accepted Answer

A)  declared within the body of the method 
B)  declared in the method header inside the parentheses 
C)  declared in the calling method 
D)  uses the declaration of the argument 
A)  declared within the body of the method 
B)  declared in the method header inside the parentheses 
C)  declared in the calling method 
D)  uses the declaration of the argument

Question 3

In a @return tag statement the description

Accepted Answer

A)  cannot be longer than one line 
B)  describes the return value 
C)  must be longer than one line 
D)  describes the parameter values 
A)  cannot be longer than one line 
B)  describes the return value 
C)  must be longer than one line 
D)  describes the parameter values

Question 4

Only constants and variables may be passed as arguments to methods.

Accepted Answer

A) True 
 B)False

Question 5

You must have a return statement in a value-returning method.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is included in a method call?

Accepted Answer

A)  return type 
B)  method modifiers 
C)  parentheses 
D)  return variable 
A)  return type 
B)  method modifiers 
C)  parentheses 
D)  return variable

Question 7

Assume that the following method header is for a method in class A. public void displayValue(int value)
Assume that the following code segments appear in another method,also in class A.Which contains a legal call to the displayValue method?

Accepted Answer

A)  int x = 7;
Void displayValue(x); 
B)  int x = 7;
DisplayValue(x); 
C)  int x = 7;
DisplayValue(int x); 
D)  int x = 7;
DisplayValue(x) 
A)  int x = 7;
Void displayValue(x); 
B)  int x = 7;
DisplayValue(x); 
C)  int x = 7;
DisplayValue(int x); 
D)  int x = 7;
DisplayValue(x)

Question 8

Breaking a program down into small manageable methods

Accepted Answer

A)  makes problems more easily solved 
B)  allows for code reuse 
C)  simplifies programs 
D)  all of the above 
A)  makes problems more easily solved 
B)  allows for code reuse 
C)  simplifies programs 
D)  all of the above

Question 9

When a method tests an argument and returns a true or false value,it should return

Accepted Answer

A)  a zero for true and a one for false 
B)  a boolean value 
C)  a zero for false and a non-zero for true 
D)  a method should not be used for this type test 
A)  a zero for true and a one for false 
B)  a boolean value 
C)  a zero for false and a non-zero for true 
D)  a method should not be used for this type test

Question 10

The process of breaking a problem down into smaller pieces is called

Accepted Answer

A)  functional decomposition 
B)  scientific method 
C)  top-down programming 
D)  whole-into-part 
A)  functional decomposition 
B)  scientific method 
C)  top-down programming 
D)  whole-into-part

Question 11

The header of a value-returning method must specify this.

Accepted Answer

A)  The method's local variable names 
B)  The name of the variable in the calling program that will receive the returned value 
C)  The data type of the return value 
D)  All of the above 
A)  The method's local variable names 
B)  The name of the variable in the calling program that will receive the returned value 
C)  The data type of the return value 
D)  All of the above

Question 12

When writing the documentation comments for a method,you can provide a description of each parameter by using a

Accepted Answer

A)  @comment tag 
B)  @doc tag 
C)  @param tag 
D)  @return tag 
A)  @comment tag 
B)  @doc tag 
C)  @param tag 
D)  @return tag

Question 13

Values stored in local variables

Accepted Answer

A)  are lost between calls to the method in which they are declared 
B)  retain their values from the last call to the method in which they are declared 
C)  may be referenced by the calling method 
D)  may be referenced by any other method,if the method in which they are declared is a public method 
A)  are lost between calls to the method in which they are declared 
B)  retain their values from the last call to the method in which they are declared 
C)  may be referenced by the calling method 
D)  may be referenced by any other method,if the method in which they are declared is a public method

Question 14

This type of method performs a task and then terminates.

Accepted Answer

A)  value-returning 
B)  void 
C)  local 
D)  simple 
A)  value-returning 
B)  void 
C)  local 
D)  simple

Question 15

All @param tags in a method's documentation comment must

Accepted Answer

A)  end with a */ 
B)  appear after the general description of the method 
C)  appear before the method header 
D)  span several lines 
A)  end with a */ 
B)  appear after the general description of the method 
C)  appear before the method header 
D)  span several lines

Question 16

A value-returning method can return a reference to a non-primitive type.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is not a part of the method header?

Accepted Answer

A)  return type 
B)  method name 
C)  parentheses 
D)  semicolon 
A)  return type 
B)  method name 
C)  parentheses 
D)  semicolon

Question 18

What will be returned from the following method? public static double methodA()
{
Double a = 8.5 + 9.5;
Return a;
}

Accepted Answer

A)  18.0 
B)  18 (as an integer) 
C)  8 
D)  This is an error 
A)  18.0 
B)  18 (as an integer) 
C)  8 
D)  This is an error

Question 19

What is wrong with the following method call? displayValue (double x);

Accepted Answer

A)  There is nothing wrong with the statement. 
B)  displayValue will not accept a parameter. 
C)  Do not include the data type in the method call. 
D)  x should be a String. 
A)  There is nothing wrong with the statement. 
B)  displayValue will not accept a parameter. 
C)  Do not include the data type in the method call. 
D)  x should be a String.

Question 20

No statement outside the method in which a parameter variable is declared can access the parameter by its name.

Accepted Answer

A) True 
 B)False

Exam 5: Methods

If method A calls method B,and method B calls method C,and method C calls method D,when method D finishes,what happens?

When an argument value is passed to a method,the receiving parameter variable is

In a @return tag statement the description

Only constants and variables may be passed as arguments to methods.

You must have a return statement in a value-returning method.

Which of the following is included in a method call?

Assume that the following method header is for a method in class A. public void displayValue(int value) Assume that the following code segments appear in another method,also in class A.Which contains a legal call to the displayValue method?

Breaking a program down into small manageable methods

When a method tests an argument and returns a true or false value,it should return

The process of breaking a problem down into smaller pieces is called

The header of a value-returning method must specify this.

When writing the documentation comments for a method,you can provide a description of each parameter by using a

Values stored in local variables

This type of method performs a task and then terminates.

All @param tags in a method's documentation comment must

A value-returning method can return a reference to a non-primitive type.

Which of the following is not a part of the method header?

What will be returned from the following method? public static double methodA() { Double a = 8.5 + 9.5; Return a; }

What is wrong with the following method call? displayValue (double x);

No statement outside the method in which a parameter variable is declared can access the parameter by its name.

Introduction to Computers and Java

Java Fundamentals

Decision Structures

Loops and Files

A First Look at Classes

A First Look at Gui Applications

Arrays and the Arraylist Class

A Second Look at Classes and Objects

Text Processing and More About Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Advanced Gui Applications

Applets and More

Recursion

Sorting, Searching, and Algorithm Analysis

Generics

Collections

Array-Based Lists

Linked Lists

Stacks and Queues

Binary Trees, Avl Trees, and Priority Queues

Filters