NEW QUESTION 1
Given the fragments:

Which line causes a compilation error?

• A. Line n1
• B. Line n2
• C. Line n3
• D. Line n4

Answer: A

NEW QUESTION 2
Given:

What is the result?

• A. One
• B. Two
• C. Three
• D. Compilation fails

Answer: D

NEW QUESTION 3
Which three are valid types for switch?

• A. int
• B. float
• C. double
• D. integer
• E. String
• F. Float

Answer: ADE

Explanation: A switch works with the byte, short, char, and int primitive data types. It also works with enumerated types theString class, and a few special classes that wrap certain primitive types: Character, Byte, Short, and Integer.

NEW QUESTION 4
Given the code fragment:
String name = "Spot"; int age = 4;
String str ="My dog " + name + " is " + age; System.out.println(str);
And
StringBuilder sb = new StringBuilder();
Using StringBuilder, which code fragment is the best potion to build and print the following
string My dog Spot is 4

• A. sb.append("My dog " + name + " is " + age); System.out.println(sb);
• B. sb.insert("My dog ").append( name + " is " + age); System.out.println(sb);
• C. sb.insert("My dog ").insert( name ).insert(" is " ).insert(age); System.out.println(sb);
• D. sb.append("My dog ").append( name ).append(" is " ).append(age); System.out.println(sb);

Answer: AD

NEW QUESTION 5
Given:

• A. ns = 50 S = 125ns = 125 S = 125ns = 100 S = 125
• B. ns = 50 S = 125 ns = 125 S = 125ns = 0 S = 125
• C. ns = 50 S = 50 ns = 125 S = 125ns = 100 S = 100
• D. ns = 50 S = 50 ns = 125 S = 125ns = 0 S = 125

Answer: B

NEW QUESTION 6
Given the code fragment:

• A. Super SubSub
• B. Contract Contract Super
• C. Compilation fails at line n1
• D. Compilation fails at line n2

Answer: D

NEW QUESTION 7
Which statement is true about the default constructor of a top-level class?

• A. It can take arguments.
• B. It has private access modifier in its declaration.
• C. It can be overloaded.
• D. The default constructor of a subclass always invokes the no-argument constructor of its superclass.

Answer: D

Explanation: In both Java and C#, a "default constructor" refers to a nullary constructor that is automatically generated by the compiler if no constructors have been defined for the class. The default constructor is also empty, meaning that it does nothing. A programmer- defined constructor that takes no parameters is also called a default constructor.

NEW QUESTION 8
Given:

• A. X XX
• B. X Y X
• C. Y Y X
• D. Y YY

Answer: D

NEW QUESTION 9
Given:
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);
}
}
What is the result?

• A. One
• B. Two
• C. Three
• D. Compilation fails.

Answer: D

NEW QUESTION 10
Given:

What is the result?

• A. Marrown String out of limits JesOran
• B. Marrown String out of limits Array out of limits
• C. Marrown String out of limits
• D. Marrown NanRed JesOran

Answer: A

NEW QUESTION 11
Given the code fragment:
public class Test {
public static void main(String[] args) { boolean isChecked = false;
int arry[] = {1,3,5,7,8,9};
int index = arry.length; while ( <code1> ) {
if (arry[index-1] % 2 ==0) { isChecked = true;
}
<code2>
}
System.out.print(arry(index]+", "+isChecked));
}
}
Which set of changes enable the code to print 1, true?

• A. Replacing <code1> with index > 0 and replacing <code2> with index--;
• B. Replacing <code1> with index > 0 and replacing <code2> with --index;
• C. Replacing <code1> with index > 5 and replacing <code2> with --index ;
• D. Replacing <code1> with index and replacing <code2> with --index ;

Answer: A

Explanation: Note: Code in B (code2 is --index;). also works fine.

NEW QUESTION 12
Given:

What is the result?

• A. 6 7 8
• B. 7 8 9
• C. 0 1 2
• D. 6 8 10
• E. Compilation fails

Answer: A

NEW QUESTION 13
Give:

What is the result?

• A. 1525
• B. 13
• C. Compilation fails
• D. An exception is thrown at runtime
• E. The program fails to execute due to runtime error

Answer: D

NEW QUESTION 14
Which code fragment cause a compilation error?

• A. flat flt = 100F;
• B. float flt = (float) 1_11.00;
• C. float flt = 100;
• D. double y1 = 203.22; floatflt = y1
• E. int y2 = 100; floatflt = (float) y2;

Answer: B

NEW QUESTION 15
An unchecked exception occurs in a method dosomething()
Should other code be added in the dosomething() method for it to compile and execute?

• A. The Exception must be caught
• B. The Exception must be declared to be thrown.
• C. The Exception must be caught or declared to be thrown.
• D. No other code needs to be added.

Answer: D

Explanation: Because the Java programming language does not require methods to catch or to specify unchecked exceptions (RuntimeException,Error, and their subclasses), programmers may be tempted to write code that throws only unchecked exceptions or to make all their exceptionsubclasses inherit fromRuntimeException. Both of these shortcuts allow programmers to write code without bothering with compiler errors and without bothering to specify or to catch anyexceptions. Although this may seem convenient to the programmer, it sidesteps theintent of thecatchorspecifyrequirement and can cause problems for others
using your classes.

NEW QUESTION 16
Given the following four Java file definitions:
// Foo.java
package facades; public interface Foo { }
// Boo.java package facades;
public interface Boo extends Foo { }
// Woofy.java package org.domain
// line n1
public class Woofy implements Boo, Foo {}
// Test.java package.org; public class Test {
public static void main(String[] args) { Foo obj=new Woofy();
Which set modifications enable the code to compile and run?

• A. At line n1, Insert: import facades;At line n2, insert:import facades;importorg.domain;
• B. At line n1, Insert: import facades.*;At line n2, insert:import facades;import org.*;
• C. At line n1, Insert: import facades.*;At line n2, insert:import facades.Boo;import org.*;
• D. At line n1, Insert: import facades.Foo, Boo;At line n2, insert:import org.domain.Woofy;
• E. At line n1, Insert: import facades.*;At line n2, insert:import facades;import org.domain.Woofy;

Answer: E

NEW QUESTION 17
Given the code fragment:
public static void main(String[] args) {
int iArray[] = {65, 68, 69};
iArray[2] = iArray[0];
iArray[0] = iArray[1];
iArray[1] = iArray[2];
for (int element : iArray) {
System.out.print(element + " ");
}

• A. 68, 65, 69
• B. 68, 65, 65
• C. 65,68, 65
• D. 65, 68, 69
• E. Compilation fails

Answer: B

NEW QUESTION 18
Given:

What is the result?

• A. 100210
• B. Compilation fails due to an error in line n1
• C. Compilation fails due to an error at line n2
• D. Compilation fails due to an error at line n3

Answer: C