1. Quiz Oracle Section 4 
   
   
   1.      When Eclipse launches, the Welcome page displays. Once this page is closed you cannot return to the resources available on this page. True or False?         
   True                             False (*)
   
   
   2.      Eclipse provides an edit area to help you navigate a hierarchy of information. True or False?                      
         True                                                                             False (*)
   
   
   3.      Eclipse provides views to help you navigate a hierarchy of information. True or False?       True (*)                                                                       False
   
   
   4.      Tabs are used when more than one file is open in the edit area. True or False?        
   True (*)            False
   
   
   5.      A perspective is described as: Mark for Review
   o   A combination of views and editors (*)
   o   A combination of views and windows
   o   A combination of editor tabs
   o   None of the above
   
   
   6.      The ______________ is the location onto which you will store and save your files.           
   o   Perspective
   o   Workspace (*)
   o   Editor
   o   None of the above
   
   
   7.      A workspace can have one or more stored projects. True or false?      
   True (*)                       False
   
   
   8.      Identify the components in the image below.
   ·        
   ·       A-Main Method, B-Class, C-Package
   ·       A-Class, B-MainMethod, C-Package
   ·       A-Package, B-Main Method, C-Class (*)
   ·       None of the above
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   9.      In Eclipse, when you run a Java Application, the results may be displayed in the Console View. True or False?             
   True (*)                                                           False
   
   
   11.  When importing another package into a class you must import the entire package as well as the package classes that will be called. True or False?                  
   True                             False (*)
   
   
   11.  A counter used in a For loop cannot be initialized within the For loop statement. True or False?
   True                                                                             False (*)
   
   
   12.  The syntax below represents a valid initialization of a For loop counter. True or False?
   public class ForLoop {
    public static void main (String args[])
    {
               for (int i=10; i <20; i++)<
   {System.out.println("i: "+i); }
               }
   }                                  
   True (*)                                                                                    False
   
   
   13.  In a For loop, the counter is automatically incremented after each loop iteration. True or False?    
   True                                                                                         False (*)
   
   
   14.  In an if-else construct, the condition to be evaluated must be contained within parentheses. True or False?           
   True (*)                                                           False
   
   
   15.  Which of the two diagrams below illustrate the correct syntax for variables used in an if-else statement?
   
   
   Example A*                Example B
   
   
   16.  Which of the two diagrams below illustrate the general form of a Java program?
   
   
   
   
   Example A                  Example B*
   
   
   17.  The six relational operators in Java are:         
   ·         >,<,=,!,<=,>=
   ·         >,<,=,!=,=<,=>
   ·         >,<,=,!=,<=,>=
   ·         >,<,==,!=,<=,>= (*)
   
   
   18.  Determine whether this boolean expression evaluates to true or false:
   !(3<4&&5>6||6<=6&&7-1==6)                  
   True                                                     False (*)
   
   
   19.  The three logic operators in Java are: 
   ·         !=,=,==
   ·         &&, ||, ! (*)
   ·         &&,!=,=
   ·         &,|,=
   
   
   20.  What will print if the following Java code is executed?
   0                                  3 (*)                                         4                                              5
   
   
   21.  What is the difference between the symbols = and == ?      
   ·         The symbol = is used in if statements and == is used in loops.
   ·         The symbol == is used to assign values to variables and the = is used in declarations.
   ·         The = is use to assign values to variables and the == compares values. (*)
   ·         There is no difference.
                                      
   22.  What is the output of the following lines of code?
   int j=7,k=5,m=8,result; result=j/m*k; System.out.println(result);     
               0 (*)                             4.375                                       0.175                           280                 
   
   
   23.  What is the output of the following lines of code?
   int j=7,k=5,m=8,result; result=j-k%3*m; System.out.println(result);
               0                                  16                                2                                  -9 (*)
   
   
   24.  What is the output of the following lines of code?
   int j=6,k=8,m=2,result;
   result=j-k%3*m;
   System.out.println(result);     
   -42
   0
   2 (*)
   6
   
   
   
   
   25.  Which of the following is not correct Java code?
   ·         double x=Math.sqrt(16);
   ·         double x=Math.pow(3,4)*5.0;
   ·         double x=Math.PI*5.0;
   ·         double x=Math.pow; (*)                    
              
   26.  Which line of Java code assigns the value of 5 raised to the power of 8 to a?         
   ·         double a=15^8;
   ·         double a=Math.pow(5,8); (*)
   ·         int a=Math.pow(8,5);
   ·         int a=Math.pow(5,8);
   ·         double a=pow(8,5);
   
   
   27.  Write a declaration statement that will hold a number like 2.541.    
   ·         char number;
   ·         int number;
   ·         float number; (*)
   ·         boolean number;
                          
   28.  Which of the following is the name of a Java primitive data type?  
   ·         String
   ·         int (*)
   ·         Rectangle
   ·         Object
              
   29.  Which of the following is not a legal name for a variable?
   ·         R2d2
   ·         dgo2sleep
   ·         4geeks (*)
   ·         to_be_or_not_to_be
              
   30.  Which of the following examples of Java code is not correct?         
   ·         int x=6;
   ·         double d=4.5;
   ·         boolean b=1; (*)
   ·         char c='r';
              
   31.  Which of the following statements correctly assigns "3 times 10 to the 4th power" to the variable number?           
   ·         double number=3*10^4;
   ·         double number=3(e4);
   ·         double number=3e4; (*)
   ·         double number=3*10e4;
                          
   32.  Which line of code does not assign 3.5 to the variable x?     
   ·         double x=3.5
   ·         x=3.5;
   ·         3.5=x; (*)
   ·         x=7.0/2.0;
              
   33.  Consider the following:
   You are writing a class and are using a global variable. Inside a method you declare a local variable with the same name as the global variable.
   This programming style is poor because inside the method the global variable will have precedence over the local variable with the same name.
   True or false?                          
   True                                                     False (*)
   
   
   34.  What will the method A print to the screen?
   
   
   18 (*)
   15
   6
   3
   
   
   35.  Which line of Java code properly calculates the volume of a cone using
     where r and h are Java primitive integers?
   ·         double V=1/3*3.14*r*r*h;
   ·         double V=(double)1/3*Math.PI*Math.pow(r,2)*h; (*)
   ·         double V=1/3*Math.PI*Math.pow(r,2)*h;
   ·         double V=(double)1/3*Math.PI*Math.pow(2,r)*h;
   ·         double V=1/3*3.14*r(2)*h;
              
   36.  Given the following declaration: int z=5,m=6;
   Which line of Java code properly casts one type into another without data loss?      
   ·         double x=(double)z/m; (*)
   ·         double x=z/m;
   ·         double x=(double)(z/m);
   ·         double x= double z/m;
   
   
   37.  What will the following code segment output?
               "\\" (*)
               "\\\"
               \"\\\\\"
               "\\\\\"
   
   
   38.  The String methods equals and compareTo perform similar functions and differ in their return type. True or false? 
   True (*)                                   False
   
   
   39.  Consider the following code snippet. What is printed?
   String river = new String("Hudson"); System.out.println(river.length());     
               8
               7
               Hudson
               river
               6 (*)
   
   
   40.  Which of the following defines a driver class?                    
   Contains a main method and other static methods. (*)
               Contains classes that define objects.
               Contains a main method, a package, static methods, and classes that define objects.
               None of the above.
   
   
   41.  The following defines a class keyword:        
   Provides the compiler information that identifies outside classes used within the current class.
               Precedes the name of the class. (*)
               Defines where this class lives relative to other classes, and provides a level of access control.
   
   
   42.  Which of the two diagrams below illustrate the general form of a Java program?
               Example A
               Example B (*)
   43.  What two values can a boolean variable have?                     
   Relational and logic operators
               Arithmetic and logic operators
               True and false (*)
               Numbers and characters
               Integers and floating point types
   
   
   44.  Which line of Java code assigns the value of 5 raised to the power of 8 to a?                     int a=Math.pow(5,8);
               double a=Math.pow(5,8); (*)
               double a=15^8;
               int a=Math.pow(8,5);
               double a=pow(8,5);
   
   
   45.  What is the output of the following lines of code?
   int j=6,k=8,m=2,result;
   result=j-k%3*m;
   System.out.println(result);     
               -42
               2 (*)
               6
               0
   
   
   46.  For every opening curly brace { there must be a closing curly brace} or the program will not compile without error. True or False?  
   True (*)                       False
   
   
   47.  You can return to the Eclipse Welcome Page by choosing Welcome from what menu?      
   Close
   Edit
   File
   Help (*)
   
   
   48.  Tabs are used when more than one file is open in the edit area. True or False?        
   True (*)                        False
   
   
   49.  Which line of code does not assign 3.5 to the variable x?     
   3.5=x; (*)
   x=7.0/2.0;
   double x=3.5
   x=3.5;
   
   
   50.  A local variable has precedence over a global variable in a Java method. True or false?      
   True (*)                       False
   
   
   51.  What does the following program output?
   
   
   "total cost: " 48
               total cost: 48
               "total cost: " 40
               total cost: + 40
               total cost: 40 (*)
   
   
   52.  The ______________ is the location into which you will store and save your files.
   Perspective
   Workspace (*)
   Editor
   None of the above
   
   
   53.  What symbols are required for a compiler to ignore a comment?      
    /*/
   /*
   */
   // (*)
   
   
   54.  The following program prints "Equal". True or false?
   True                 False (*)
   
   
   55.  Suppose that s1 and s2 are two strings. Which of the statements or expressions are valid? 
   Choose all correct answers)  
   String s3 = s1 + s2; (*)
   String s3 = s1 - s2;
   s1.compareTo(s2); (*)
   int m = s1.length(); (*)
   s1 <= s2
   
   
   56.  Declaring and instantiating a String is much like any other type of variable. However, once instantiated, they are final and cannot be changed. True or false?   
               True (*)                       False
   
   
   57.  The following defines a package keyword:   
   Defines where this class lives relative to other classes, and provides a level of access control. (*)
               Provides the compiler information that identifies outside classes used within the current class.
               Precedes the name of the class.
   
   
   58.  The following defines a class keyword:        
   Provides the compiler information that identifies outside classes used within the current class.
   Precedes the name of the class. (*)
   Defines where this class lives relative to other classes, and provides a level of access control.
   
   
   59.  Match each of the following literals ('x', 10, 10.2, 100L, "hello") with its respective data type. 
   char, boolean, float, long, String
   char, double, int, long, String
   char, int, long, float, String
   boolean, byte, int, long, Short
   char, int, double, long, String (*)
   
   
   60.  Which line of Java code will assign the value of the square root of 11 to a variable named a?       
   int a=Math.sqrt(11);
   double a=11^(1/2);
   double a=Math.sqrt*11;
   double a=Math.sqrt(11); (*)
   double a=sqrt(11);
   
   
   61.  Which of the following statements displays 12345?
   I. System.out.println( 123 * 100 + 45);
   II. System.out.println("123" + 45);
   III. System.out.println( 12 + "345"); 
   All of the above. (*)
   I only.
   I and II only.
   II and III only.
   None of the above.
   
   
   62.  Select the declaration and initialization statement that will hold the letter J
   String letter='J';
   char letter='J'; (*)
   int letter='J';
   float letter='J';
   
   
   63.  For every opening curly brace { there does not need to be a closing curly brace} for the program to compile without error. True or False?
   True                             False (*)
   
   
   64.  Two variables are required to support a conversion of one unit of measure to another unit of measure. True or False? 
   True (*)                       False
   
   
   65.  The == operator can be used to compare two String objects. The result is always true if the two strings are identical. True or false?    
   True                             False (*)
   
   
   66.  Consider the following code snippet
   String forest = new String("Black");
   System.out.println(forest.length());
   
   
   What is printed?         
   Forest
   7
   6
   Black
   5 (*)
   
   
   67.  The following program prints "Equal". True or false?
   True (*)                                   False
   
   
   68.  The following defines a package keyword:   
   Provides the compiler information that identifies outside classes used within the current class.
   Defines where this class lives relative to other classes, and provides a level of access control. (*)
   Precedes the name of the class.
   
   
   69.   In Eclipse, when you run a Java Application, the results are displayed in a new window. True or False?           
   True                             False (*)
   
   
   70.  Multiple windows are used when more than one file is open in the edit area. True or False?          
   True                             False (*)
   
   
   71.  What is the purpose of the Eclipse Editor Area and Views?
    (Choose all correct answers)  
   To choose the file system location to delete a file.
   To modify elements. (*)
   To navigate a hierarchy of information. (*)
   
   
   72.  The following defines an import keyword:   
   Precedes the name of the class.
   Defines where this class lives relative to other classes, and provides a level of access control.
   Provides the compiler information that identifies outside classes used within the current class. (*)
   
   
   73.  The following code is an example of creating a String reference:
   String s;
   True or false? 
   True (*)                                    False
   
   
   74.  Which of the following statements declares a String object called name?    
   String name; (*)
   String name
   double name;
   int name;
   
   
   75.  Given the code below, which of the following would equate to true?
   String s1 = "yes";
   String s2 = "yes";
   String s3 = new String(s1);
   (Choose all correct answers)  
   s1 == s2 (*)
   s3.equals(s1) (*)
   s1.equals(s2) (*)
   s1 = s2
   s3 == s1
   
   
   76.  Which line of Java code properly calculates the area of a triangle using A=1/2(b)(h) where b and h are Java primitive integers?          
   double A=1/2bh;
   double A=(double)1/(double)2*b*h; (*)
   double A=(double)(1/2)*b*h;
   double A=1/2*b*h;
   
   
   77.  Which of the following is not a legal name for a variable?   
   theLastValueButONe
   zero
   year2000
   2bad (*)
   
   
   78.  What is the purpose of the Eclipse Editor Area and Views?
   (Choose all correct answers)  
   To modify elements. (*)
   To choose the file system location to delete a file.
   To navigate a hierarchy of information. (*)
   
   
   79.  A _______________ is used to organize Java related files.  
   Project
   Collection
   Package (*)
   Workspace
   
   
   80.  Which of the two diagrams below illustrate the general form of a Java program?
   Example A                              Example B (*)
   
   
   81.  Which of the two diagrams below illustrate the general form of a Java program?
   Example A                              Example B (*)
   
   
   82.  Examine the following code:
   What is the value of variable x?         
               14
               2 (*)
               6
               2.5
   
   
   83.  Which of the following is not correct Java code?     
   double x=Math.pow; (*)
   double x=Math.sqrt(16);
   double x=Math.pow(3,4)*5.0;
   double x=Math.PI*5.0;
   
   
   84.  What is printed by the following code segment?
   
   
               \\\\\\\\\\\\\\
               \\\\
               \\\\\\\ (*)
               \\
   
   
   85.  Consider the following code snippet.
   
   
               What is printed?    
   AtlanticPacificIndianArcticSouthern
               Code does not compile
               87658
               55555
               ArrayIndexOutofBoundsException is thrown (*)