Q: Which of the following options remain true for case constants in a switch construct?

If any one of the case constants has a match with the expression, then all statements after the matching case label in the switch block are executed in sequence

Question 1

Using Java we can develop ___________________.

Accepted Answer

Both the options

Question 2

The main method in java should ___________.

Accepted Answer

be public static

Question 3

The break statement cannot be present for _____________ construct.

Accepted Answer

if

Question 4

A continue statement makes the execution jump to ______________.

Accepted Answer

the next iteration of the loop

Question 5

Identify the features of java.

Accepted Answer

Exception Handling

Question 6

a for loop, if the number of statements are greater than one, which of the following needs to be inserted at the beginning and the end of the loop?

Accepted Answer

French curly braces{ }

Question 7

JRE comprises of ___________ and ___________.

Accepted Answer

JVM, API

Question 8

What will be the output of the program? public class Sample { final static short a = 2; public static int b = 0; public static void main(String [] arg

Accepted Answer

a-2 a-1 a default a-1 default a-1

Question 9

The ________________ statement causes the program execution to stop and JVM to shut down.

Accepted Answer

System.exit

Question 10

JVM is independent of OS

Accepted Answer

True

Question 11

A project developed on one machine can be included in the current workspace by ___________ that project.

Accepted Answer

Importing

Question 12

State True or False. When typing the code in code editor, it fixes the compilation error. It also assists in how to fix that error.

Accepted Answer

True

Question 13

We can move an already existing project in eclipse to another location by compressing it. This we call as ________ the project.

Accepted Answer

Exporting

Question 14

Eclipse, the plugin that is needed for Java Development is ______________.

Accepted Answer

JDT

Question 15

Predict the output int a=0; if(a) System.out.println( "Hello"); else System.out.println( "Hai");

Accepted Answer

Compilation Fails

Question 16

What will be the output of the program? public class Sample { public static void main(String [] args) { int i = 10; do while ( i < 10 ) System.out.pri

Accepted Answer

No output is produce

Question 17

__________ generates the byte code for a given file with .java extension.

Accepted Answer

JDK

Question 18

Which edition of java is used for developing web application?

Accepted Answer

J2EE

Question 19

State True or False For compiling a java code we have separate compilers for different OS.

Accepted Answer

False

Question 20

Which of the following options remain true for case constants in a switch construct?

Accepted Answer

If any one of the case constants has a match with the expression, then all statements after the matching case label in the switch block are executed in sequence

Question 21

The methods of a class with the ____________ access specifier cannot be accessed in its subclass class of different package.

Accepted Answer

default

Question 22

Predict the output. class X { void display(int a) { System.out.println("INT"); } void display(double d) { System.out.println("DOUBLE"); } } public cla

Accepted Answer

INT

Question 23

Observe the code public class Sample { public static void main(String [] args) { int x = 6; Sample p = new Sample(); p.display(x); System.out.print("

Accepted Answer

display x = 6 main x = 7 f. display x = 6 main x = 6

Question 24

Integer x1 = new Integer(120); int x2 = 120; System.out.println( x1 == x2 ); What will be the output of the above code fragment?

Accepted Answer

true

Question 25

Given: public class Message { String msg; int noOfWords; public Message() { msg += " Thank you"; } public Message(int noOfWords) { this.noOfWords = no

Accepted Answer

Compilation fails

Question 26

Given classes defined in two different files: 1. package p1; 2. public class Test { 3. public static void display(String [] a) { /* some code */ } 4.

Accepted Answer

p1.Test.display(names);

Question 27

What is the outcome of the code? public class Item { private String description; public String getDescription() { return description; } public void se

Accepted Answer

Gobstopper Fizzylifting

Question 28

Which of the following is not a Java modifier?

Accepted Answer

virtual

Question 29

switch(a) { default: System.out.println("Welcome"); } Of which data types can the variable a be? 1. long 2. byte 3. int 4. char 5. float 6. short

Accepted Answer

2,3, 4 and 6

Question 30

Predict the output. public class Test { public static void main(String args[]) { int a = 2, b = 0; for ( ; b < 20; ++b) { if (b % a == 0) continue; el

Accepted Answer

1 3 5 7 9 11 13 15 17 19

Question 31

Given a one-dimensional array arr, what is the correct way of getting the number of elements in arr?

Accepted Answer

arr.length()

Question 32

class ArrayTest { public static void main(String args[]) { int[] primes = new int[10]; primes[0] = "a"; System.out.println(primes[0]); } } What will b

Accepted Answer

compile time error

Question 33

Partially List the correct ways of declaring an Array.

Accepted Answer

String [ ] name [ ];, int studentId[ ];, int [ ]studentId;

Question 34

class TestArray { public static void main(String args[]) { int arr_sample[] = new int[2]; System.out.println(arr_sample[0]); } } What will be the resu

Accepted Answer

The program compiles and prints 0 when execute

Question 35

String name="teknoturf"; String cname="teknoturf"; String compname=new String("teknoturf"); 1.if(name==cname) 2.if(name.equals(cname)) 3.if(name==comp

Accepted Answer

Line 1,2,4 will return tru

Question 36

What is the output of this program? class Output { public static void main(String args[]) { int a1[] = new int[10]; int a2[] = {1, 2, 3, 4, 5}; System

Accepted Answer

10 5

Question 37

StringBuilder is less eficient and slower than StringBuffer. State true or false.

Accepted Answer

TRUE

Question 38

State True or False. Advanced for loop is better as it is less error prone as we don't need to deal with index.

Accepted Answer

TRUE

Question 39

which of the following packages can you find String class?

Accepted Answer

lang

Question 40

StringBuffer is used to create ______________.

Accepted Answer

a mutable String

Question 41

The first name of a person should contain only alphabets and space. Which of the following regular expression will match the requirement?

Accepted Answer

[a-zA-Z ]

Question 42

Which of the following text when matched with the regular expression [a-zA-Z&&[^aeiou]]+ will return true?

Accepted Answer

My, cry

Question 43

What is the regular expression to match a whitespace character in a string?

Accepted Answer

True

Question 44

What is the regular expression to match a digit (0-9) in a string?

Accepted Answer

\d

Question 45

00means X occurs zero or more times

Accepted Answer

X* means X occurs zero or more times

Question 46

What is the regular expression to match any email address in a string?

Accepted Answer

[a-zA-Z0-9+_.-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}

Question 47

Consider the below statements. Statement 1 : Matcher class interprets the pattern in a String Statement 2 : Matcher class matches the regular expressi

Accepted Answer

Both Statement 1 and 2 are correct

Question 48

\B means A word boundary

Accepted Answer

\B matches a non-word boundary

Question 49

Predict the output of the below code : import java.util.regex.*; public class TestRegEx{ public static void main(String args[]) { Pattern p = Pattern.

Accepted Answer

true

Question 50

What is the regular expression to match any date in the format "yyyy-mm-dd" in a string?

Accepted Answer

\d{4}-\d{2}-\d{2}

Question 51

The ________________ statement causes the program execution to stop and JVM to shut down.

Accepted Answer

exit

Question 52

Using Java we can develop ___________________.

Accepted Answer

Both the options

Question 53

The break statement cannot be present for _____________ construct.

Accepted Answer

if

Question 54

A continue statement makes the execution jump to ______________.

Accepted Answer

the next iteration of the loop

Question 55

What will be the output of the program? public class Sample { final static short a = 2; public static int b = 0; public static void main(String [] arg

Accepted Answer

a-2 a-1 a default a-1

Question 56

a for loop, if the number of statements are greater than one, which of the following needs to be inserted at the beginning and the end of the loop?

Accepted Answer

French curly braces{ }

Question 57

Identify the features of java.

Accepted Answer

Multi threading

Question 58

JRE comprises of ___________ and ___________.

Accepted Answer

API, JVM

Question 59

The main method in java should ___________.

Accepted Answer

be public static

Question 60

Java is _____________________________.

Accepted Answer

Platform independent

Question 61

State True or False. When typing the code in code editor, it shows the compilation error. It also assists in how to fix that error.

Accepted Answer

True

Question 62

Eclipse, the plugin that is needed for Java Development is ______________.

Accepted Answer

JDT

Question 63

A project developed on one machine can be included in the current workspace by ___________ that project.

Accepted Answer

Importing

Question 64

We can move an already existing project in eclipse to another location by compressing it. This we call as ________ the project.

Accepted Answer

Exporting

Java Programming

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