_60. what might the heading of the oopy conaractor for theas aove lock d. publio
ID: 3726612 • Letter: #
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_60. what might the heading of the oopy conaractor for theas aove lock d. publio Based on the class definition above,whith of the following st-nt.n 61. int a, int b) _ statements lin illeg Illustrate.+, Ilustrate.x++ c. d. which of the following statements-M you use to and instantiate the object with a value of 97 a. b. llObject-Illustrate(9) c. Ilustrate ilObjet(9) d. Illustrate.illObjeet) How many finalizers can a class have? 62. lar.-reference ilable Illustrate illObject-new liustrate); 63. b. 1 d. Any wamber 64. Which of the following words indicates an object's reference to itselrt a. this b. that public 65. What does the term ADT stands for? a. Abstract Definition Type b. Asynchronous Data Transfer Two methods that are expected to be in all Java classes are: a. getName and setName b. c. d. Abstract Data Type Alternative Definition Type 66. oompareT.nd charAt toLowerCase and toUpperCase toString and equals d. 67. Java has a way of officially hiding details of a class definition. To hide details, you mark them as c private b. protected d. static 68. A states what is assumed to be true when the method is called. c. precondition d. postcondition a. prescript b. postscript Astatic method is one that can be used with a a. instance variable b. local variable 69. c. global variable d. the class name as a calling object ic methods that cannot change the data in the object of a class is called a/an: a. mutable class b. immutable class c. annonymous class d. invariant class of each class file. To create a package, you must add a package statement at the a. beginning b. end 71. before each method signature after the import statements c. d.Explanation / Answer
60.
Answer: a. public Illustrate(Illustrate otherIllustrate)
A copy constructor is a constructor that creates a new object using the existing object and copies one object into another object.
61.
Answer: d.Illustrate.x++;
It gives an error that a non-static variable x cannot be referenced from a static content.
62.
Answer: a. Illustrate illObject = new Illustrate(9);
Declaring a new reference variable of the class is generally given by
classname referencevariable = new classname(value);
63.
Answer: b.1
A class can have only one finalizer and it is called by garbage collector thread.
64.
Answer: a.this
this is a keyword that indicates a object reference to itself in java.
65.
Answer: c.Abstract Data Type
ADT stands for Abstract Data Type.
66.
Answer: b. toString and equals
Every class expects the two methods, toString() and equals() in java.
67.
Answer: c.private
private is a access modifier that hides the details of a class definition.
68.
Answer: c.precondition
A precondition state is what assumed to be true when the method is called.
69.
Answer: d. class name as a calling object.
A static method cannot use instance variables, local variables and global variables. It can access only static variables.
70.
Answer: b.immutable class
Immutable class cannot change or modify the data in the object of a class whereas mutable class provides methods to modify the object.
71.
Answer: a. beginning
To create a package, package statement must be added at the beginning of each class file.
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