Pregunta 1
Pregunta
What will be the output of the program?<br>
Respuesta
-
Pine
-
Oak
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Tree
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Forest
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Oops
Pregunta 2
Pregunta
Select how you would run your program to cause it to print: Arg is 2 <br>
Respuesta
-
java Myfile 2 2 2
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java Myfile 1 2 2 3 4
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java Myfile 1 3 2 2
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java Myfile 1 2 2 2
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java Myfile 0 1 2 3
Pregunta 3
Pregunta
What is the prototype of the default constructor?<br>
Respuesta
-
Test()
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Test
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public Test()
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public Test(void)
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Test(void)
Pregunta 4
Pregunta
What is the widest valid returnType for methodA in line 3?<br>
Respuesta
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int
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long
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byte
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double
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void
Pregunta 5
Pregunta
Which is valid in a class that extends class A?<br>
Respuesta
-
public int method1(int a, int b) {return 0; }
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private int method1(int a, int b) {return 0; }
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protected static int method1(int a, int b) {return 0; }
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public long method1(int a, int b) {return 0; }
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public static int method1(int a, int b) {return 0; }
Pregunta 6
Pregunta
What will be the output of the program?<br>
Respuesta
-
one two three four
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one two three four one
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four three two one
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four one three two
Pregunta 7
Pregunta
What will be the output of the program?<br>
Pregunta 8
Pregunta
What will be the output of the program after the running program in such way :/> java Test red green blue?<br>
Respuesta
-
baz =
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baz = blue
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baz = null
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Runtime Exception
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Compilation Error
Pregunta 9
Pregunta
What will be the output of the program? <br>
Respuesta
-
It will print the numbers from 0 to 19 sequentially
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It will print the numbers from 1 to 20 sequentially
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It will print the numbers from 0 to 19 but the order is not determined
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It will print the numbers from 1 to 20 but the order is not determined
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It will print the numbers from 0 to 9 two times, but the order is not determined
Pregunta 10
Pregunta
The following block of code creates a Thread using a Runnable target: <br>
Which of the following classes can be used to create the target, so that the preceding code compiles correctly?
Respuesta
-
public class MyRunnable extends Runnable{public void run(){}}
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public class MyRunnable extends Object{public void run(){}}
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public class MyRunnable implements Runnable{public void run(){}}
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public class MyRunnable implements Runnable{void run(){}}
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public class MyRunnable implements Thread{void run(){}}
Pregunta 11
Pregunta
What will be the output of the program?<br>
Pregunta 12
Pregunta
Which of these will create and start this thread? <br>
Respuesta
-
new Runnable(MyRunnable).start();
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new Thread(MyRunnable).run();
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new Thread(new MyRunnable()).start();
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new MyRunnable().start();
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new Runnable(MyRunnable).run();
Pregunta 13
Pregunta
What will be an output? <br>
Respuesta
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true true
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true false
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false true
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false false
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Runtime error will occur
Pregunta 14
Pregunta
What will be an output? <br>
Respuesta
-
24
-
30
-
120
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720
-
Compilation Error
Pregunta 15
Pregunta
What will be an output? <br>
Respuesta
-
1
-
0
-
5
-
15
-
Compilation Error
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Runtime Error
Pregunta 16
Pregunta
What will be an output? <br>
Respuesta
-
1
-
0
-
12
-
78
-
Compilation error
-
Runtime error
Pregunta 17
Pregunta
What will be the output of the program? <br>
Respuesta
-
Got the exception 10
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Got the exception e
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Compilation error
-
Runtime error
Pregunta 18
Pregunta
What will be the output of the program? <br>
Pregunta 19
Pregunta
What will be the output of the program? <br>
Pregunta 20
Pregunta
What will be the output of the program? <br>
Respuesta
-
Caught base class exception
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Caught derived class exception
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Caught base class exception <br> Caught derived class exception
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Compilation error because derived is not throwable
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Compilation error because base class exception is caught before derived class
Pregunta 21
Pregunta
What will be the output of the program? <br>
Pregunta 22
Pregunta
What will be the output of the program?<br>
Pregunta 23
Pregunta
What will be the output of the program? <br>
Respuesta
-
Derived::show() called
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Base::show() called
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Compilation error
-
Runtime error
Pregunta 24
Pregunta
What will be the output of the program? <br>
Respuesta
-
Derived::show() called
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Base::show() called
-
Compilation error
-
Runtime error
Pregunta 25
Pregunta
What will be the output of the program? <br>
Respuesta
-
Base
-
Derived
-
Compilation error
-
Runtime error
Pregunta 26
Pregunta
What will be the output of the program? <br>
Respuesta
-
Compilation error in super.super.Print()
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Grandparent’s print <br> Child’s Print()
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Grandparent’s print <br> Parent’s Print <br> Child’s Print()
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Runtime error
Pregunta 27
Pregunta
What will be the output of the program? <br>
Pregunta 28
Pregunta
What will be the output of the program? <br>
Respuesta
-
20
-
0
-
Compilation error
-
Runtime error
Pregunta 29
Pregunta
What will be the output of the program? <br>
Respuesta
-
s1 == s2 is: true
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s1 == s2 is: false
-
true
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false
-
compilation error
-
runtime exception
Pregunta 30
Pregunta
What will be the output of the following program? <br>
Respuesta
-
BD
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ABDE
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BCDE
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BCD
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BDE
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ABCE
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ABCD
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ABD
Pregunta 31
Pregunta
What will be the output of the following code? <br>
Pregunta 32
Pregunta
What will be the output of the program? <br>
Pregunta 33
Pregunta
What will be the output of the program? <br>
Respuesta
-
ABCD
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ACD
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ABD
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BCD
-
BC
-
BD
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CD
Pregunta 34
Pregunta
What will be the output of the program? <br>
Respuesta
-
Hello world
-
Hello world Finally executing
-
Finally executing
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Nothing. The program will not compile because no exceptions are specified
-
Nothing. The program will not compile because no catch clauses are specified
Pregunta 35
Pregunta
What will be the output of the program? <br>
Respuesta
-
Ex0 caught
-
Exception caught
-
Compilation fails on line 2
-
Compilation fails on line 9
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Compilation fails on line 11
Pregunta 36
Pregunta
What line of code should replace the missing statement to make this program compile? <br>
Pregunta 37
Pregunta
What will be the output of the program?<br>
Pregunta 38
Pregunta
Given <br> <b> Note: The keyword "instanceof" is use to check whether an object is of a particular type</b><br>What is the result?
Respuesta
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Will produce output as false
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Compilation fails due to error at line 3
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Compilation fails due to error at line 4
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Length of this array is 3
-
Will produce output a true
Pregunta 39
Pregunta
What will be the output? <br>
Pregunta 40
Pregunta
What will be the output? <br>
Respuesta
-
Caught base class exception
-
Caught derived class exception
-
Compiler error because derived is not throwable
-
Compiler error because base class exception is caught before derived class
Pregunta 41
Pregunta
What is the output of the following code segment? <br>
Pregunta 42
Pregunta
What are the values of I and product after this code is executed? <br>
Respuesta
-
9 and 366
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9 and 336
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8 and 42
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8 and 336
Pregunta 43
Pregunta
What is the output of the following code fragment? <br>