Exam 7: User-Defined Methods

The class Math is contained in the package java.math.

public static char methodHeading(int n, double num)Based on the method heading in the accompanying figure, what is the return type of the value returned?

Formal parameters of primitive data types provide ____ between actual parameters and formal parameters.

int larger(int x, int y)Given the method heading in the accompanying figure, which of the following does NOT demonstrate method overloading?

public static double secret(int first, double second) { Double temp; if (second > first) Temp = first * second; Else Temp = first - second; return temp; }What is the name of the method in the accompanying figure?

The return statement must be the last line of the method.

public int mystery(int x, int y) { If (x >= y) Return x - y; Else Return x + y; }Based on the code in the accompanying figure, what would be the output of the following statement?System.out.println(mystery(8, mystery(2, 1));

public class scopeRule //Line 1 { //Line 2 Static double intRate = 0.055; //Line 3 Static String name; //Line 4 Static int t; //Line 5 public static int main(String[] args) //Line 6 { //Line 7 Int first; //Line 8 Double u, t; //Line 9 String str; //Line 10 //... //Line 11 } //Line 12 public static int first(int x, int y) //Line 13 { //Line 14 Int t; //Line 15 //... //Line 16 } public static double salary; //Line 17 public static void funcOne(int first, double x) //Line 18 { //Line 19 Char ch; //Line 20 Int y; //Line 21 //block one //Line 22 { //Line 23 Int u = 18; //Line 24 //... //Line 25 } //end block one //Line 26 } //Line 27 } //Line 28Which of the following is an example of a local identifier in the example seen in the accompanying figure?

int larger(int x, int y)Given the method heading in the accompanying figure, which of the following would be an incorrect demonstration of method overloading?

You can use the class String to pass strings as parameters to a method and change the actual parameter.

Which modifier is used to specify that a method cannot be used outside a class?

Which of the following statements is NOT true?

In Java, return is a reserved word.

public static double secret(int first, double second) { Double temp; if (second > first) Temp = first * second; Else Temp = first - second; return temp; }Based on the code in the accompanying figure, what would be the output of the following statement?System.out.println(secret(5, 7.0));

All the methods defined in a class must have different names.

Methods are also called modules.

Two methods are said to have different formal parameter lists if both methods have a different number of formal parameters, or if the data types of the formal parameters are the same.

public class scopeRule //Line 1 { //Line 2 Static double intRate = 0.055; //Line 3 Static String name; //Line 4 Static int t; //Line 5 public static int main(String[] args) //Line 6 { //Line 7 Int first; //Line 8 Double u, t; //Line 9 String str; //Line 10 //... //Line 11 } //Line 12 public static int first(int x, int y) //Line 13 { //Line 14 Int t; //Line 15 //... //Line 16 } public static double salary; //Line 17 public static void funcOne(int first, double x) //Line 18 { //Line 19 Char ch; //Line 20 Int y; //Line 21 //block one //Line 22 { //Line 23 Int u = 18; //Line 24 //... //Line 25 } //end block one //Line 26 } //Line 27 } //Line 28Which of the following identifiers seen in the accompanying figure is visible in block one?

The program that tests a method is called a ____ program.

Reference variables as parameters allow you to return more than one value from a method.