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Q1. Given: Which code fragment, when inserted at line 7, enables the code print true? A. Option A B. Option B C. Option C D. Option D View AnswerAnswer: A Q2. Why will the code not compile? A. A static field cannot be private. B. The getLetter method has no body. C. There is no setLetter method. D. The letter field is uninitialized. E. It contains a method named Main instead of ma
Q1. Which two statements are true? C. An interface CANNOT be extended by another interface. D. An interface can be extended by an abstract class. E. An abstract class can be extended by a concrete class. F. An abstract class CANNOT be extended by an abstract class. View AnswerAnswer: AE Q2. boolean log3 = ( 5.0 != 6.0) && ( 4 != 5); boolean log4 = (4 != 4) || (4 == 4); System.ou
Q1. A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the results? A. Compilation fails. B. The third argument is given the value null. C. The third argument is given the value void. D. The third argument is given the value zero. E. The third argument is given the appropriate falsy value for its declared type. F. An exception oc
Q1. Which is a valid abstract class? A. public abstract class Car { protected void accelerate(); } B. public interface Car { protected abstract void accelerate(); } C. public abstract class Car { protected final void accelerate(); } D. public abstract class Car { protected abstract void accelerate(); } E. public abstract class Car { protected abstract void accelerate() { //more car
Q1. Given: Which two are possible outputs? A. Option A B. Option B C. Option C D. Option D View AnswerAnswer: AD Q2. int [] array = {1,2,3,4,5}; for (int i: array) { if ( i < 2) { keyword1 ; } System.out.println(i); if ( i == 3) { keyword2 ; }} What should keyword1 and keyword2 be respectively, in oreder to produce output 2345? A. continue, break B. break, break C. break,
Q1. Which three are bad practices? A. Checking for ArrayIndexoutofBoundsException when iterating through an array to determine when all elements have been visited B. Checking for Error and. If necessary, restarting the program to ensure that users are unaware problems C. Checking for FileNotFoundException to inform a user that a filename entered is not valid D. Checking for ArrayIndexoutofBou
Q1. public class DoBreak1 { public static void main(String[] args) { String[] table = {"aa", "bb", "cc", "dd"}; for (String ss: table) { if ( "bb".equals(ss)) { continue; } System.out.println(ss); if ( "cc".equals(ss)) { break; } } } } What is the result? A. aa B. aa bb cc C. cc dd D. cc E. Compilation fails. View AnswerAnswer: A Q2. Given: What is the result? Oracle 1z
Q1. Given: What is the result? A. Compilation fails B. An exception is thrown at runtime C. There is no result because this is not correct way to determine the hash code D. Hash is: 111111, 44444444, 999999999 View AnswerAnswer: A Q2. Given the code fragment: What is the result? A. 28false29 true B. 285 < 429 true C. true true D. compilation fails View AnswerAnswer: C Q3. Give
Q1. You are writing a method that is declared not to return a value. Which two are permitted in the method body? A. omission of the return statement B. return null; C. return void; D. return; View AnswerAnswer: AD Q2. Given: A. a, e i, o B. a, e o, o C. e, e I, o D. e, e o, o View AnswerAnswer: D Q3. A method doSomething () that has no exception handling code is modified to trail
Q1. Given: What is the result? A. 11, 21, 31, 11, 21, 31 B. 11, 21, 31, 12, 22, 32 C. 12, 22, 32, 12, 22, 32 D. 10, 20, 30, 10, 20, 30 View AnswerAnswer: D Q2. Given the code fragment: What values of x, y, z will produce the following result? 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 A. X = 4, Y = 3, Z = 2 B. X = 3, Y = 2, Z = 3 C. X = 2, Y = 3, Z = 3 D. X = 4, Y = 2, Z = 3 E. X = 2, Y =
Q1. Given: How many objects have been created when the line / / do complex stuff is reached? A. Two B. Three C. Four D. Six View AnswerAnswer: C Q2. Class StaticField { static int i = 7; public static void main(String[] args) { StaticFied obj = new StaticField(); obj.i++; StaticField.i++; obj.i++; System.out.println(StaticField.i + " "+ obj.i); } } What is the result? A. 10 10
Q1. for ( expr1 ; expr2 ; expr3 ) { statement; } Which two statements are true? A. This is not the only valid for loop construct; there exits another form of for loop constructor. B. The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begin. C. When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration through th
Q1. Given: What is the result? A. hEllOjAvA! B. Hello java! C. Out of limits hEllOjAvA! D. Out of limits View AnswerAnswer: D Q2. Given the code fragment: What is the result? A. Found Red B. Found Red Found Blue C. Found Red Found Blue Found White D. Found Red Found Blue Found White Found Default View AnswerAnswer: B Q3. racle 1z0-803 : Practice Test j = (3 * ((2+4) + 5))
Q1. Given the code fragments: What is the result? A. Super Sub Sub B. Contract Contract Super C. Compilation fails at line n1 D. Compilation fails at line n2 View AnswerAnswer: D Q2. What is the result if the integer aVar is 9? A. 10 Hello world! B. 10 Hello universe! C. 9 Hello world! D. Compilation fails. View AnswerAnswer: C Q3. Given the fragment: What is the result? A.
Q1. Which three are advantages of the Java exception mechanism? A. Improves the program structure because the error handling code is separated from the normal program function B. Provides a set of standard exceptions that covers all the possible errors C. Improves the program structure because the programmer can choose where to handle exceptions D. Improves the program structure because exc
Q1. public class MyFor { public static void main(String[] args) { for (int ii = 0; ii < 4; ii++) { System.out.println("ii = "+ ii); ii = ii +1; } } } What is the result? A. ii = 0 ii = 2 B. ii = 0 ii = 1 ii = 2 ii = 3 C. ii = D. Compilation fails. View AnswerAnswer: A Q2. Which three are valid types for switch?A. intB. floatC. doubleD. integerE. StringF. FloatView AnswerAns
Q1. given: A. ns = 50 S = 125 ns = 125 S = 125 ns = 100 S = 125 B. ns = 50 S = 125 ns = 125 S = 125 ns = 0 S = 125 C. ns = 50 S = 50 ns = 125 S = 125 ns = 100 S = 100 D. ns = 50 S = 50 ns = 125 S = 125 ns = 0 S = 125 View AnswerAnswer: B Q2. Given the code fragment: nt a = 0; a++; System.out.printIn(a++); System.out.printIn(a); What is the result? A. 1 2 B. 0 1 C. 1 1 D.
Q1. Given: What is the result? A. 6 5 6 4 B. 6 5 5 4 C. 6 5 6 6 D. 6 5 6 5 View AnswerAnswer: A Q2. class Overloading { int x(double d) { System.out.println("one"); return 0; } String x(double d) { System.out.println("two"); return null; } double x(double d) { System.out.println("three"); return 0.0; } public static void main(String[] args) { new Overloading().x(4.0); } }
Q1. Identify two benefits of using ArrayList over array in software development. A. reduces memory footprint B. implements the Collection API C. is multi.thread safe D. dynamically resizes based on the number of elements in the list View AnswerAnswer: AD Q2. Which two are valid instantiations and initializations of a multi dimensional array?A. Option A B. Option B C. Option C D. Option
Q1. Given: A. a, e i, o B. a, e o, o C. e, e I, o D. e, e o, o View AnswerAnswer: D Q2. Given: What is the result? A. Red 0 Orange 0 Green 3 B. Red 0 Orange 0 Green 6 C. Red 0 Orange 1 D. Green 4 E. Compilation fails View AnswerAnswer: E Q3. A method doSomething () that has no exception handling code is modified to trail a method that throws a checked exception. Which two m