Enhance Your Career With Available Preparation Guide for 1z0-808 Exam [Q217-Q240]

Enhance Your Career With Available Preparation Guide for 1z0-808 Exam

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NEW QUESTION # 217
Given:

And the code fragment:

Which code fragment, when inserted at line 14, enables the code to print Mike Found?

A. Option C
B. Option D
C. Option B
D. Option A

Answer: D

NEW QUESTION # 218
Given:

And given the commands:

What is the result?

A. Failure
B. Compilation fails.
C. An exception is thrown at runtime
D. Success

Answer: D

NEW QUESTION # 219
Which three statements are true about the structure of a Java class?

A. A class can have overloaded static methods.
B. A method can have the same name as a field.
C. A class can have only one private constructor.
D. The fields need not be initialized before use.
E. A public class must have a main method.
F. The methods are mandatory components of a class.

Answer: B,C,D

NEW QUESTION # 220
Given:

What is the result?

A. Option A
B. Option D
C. Option B
D. Option C

Answer: D

NEW QUESTION # 221
Given the code fragment:
System.out.println(2 + 4 * 9 - 3); //Line 21
System.out.println((2 + 4) * 9 - 3); // Line 22
System.out.println(2 + (4 * 9) - 3); // Line 23
System.out.println(2 + 4 * (9 - 3)); // Line 24
System.out.println((2 + 4 * 9) - 3); // Line 25
Which line of codes prints the highest number?

A. Line 22
B. Line 25
C. Line 23
D. Line 21
E. Line 24

Answer: A

NEW QUESTION # 222
Given: What is the result?

A. Wow
B. Mom
C. Paildrome
D. Compilation fails
E. The code compiles, but does not execute.

Answer: E

NEW QUESTION # 223
Given:

What is the result?

A. 120D
B. Compilation tails due to error at line 8.
C. Compilation fails due to error at line 5.
D. 0
E. A NumberFormatException will be thrown.

Answer: B

Explanation:
At line 5, we have created a wrapper object of double by passing 120D, which is
convertible to a Double, so there won't be any exception there. But if you check carefully, you can see the variable number is declared inside try block, so the scope of the variable number is limited to that block, so trying to access it outside causes a compile time error. httpsy/docs.oracle.com/javase/tutorial/iava/nutsandbolts/variables.html

NEW QUESTION # 224
Which two items can legally be contained within a java class declaration?

A. A method declaration
B. A package declaration
C. A field declaration
D. An import statement

Answer: A,C

NEW QUESTION # 225
Given the following two classes:

How should you write methods in the ElectricAccount class at line n1 so that the member variable bill is always equal to the value of the member variable kwh multiplied by the member variable rate?
Any amount of electricity used by a customer (represented by an instance of the customer class) must contribute to the customer's bill (represented by the member variable bill) through the method use Electricity method. An instance of the customer class should never be able to tamper with or decrease the value of the member variable bill.

A. Option D
B. Option B
C. Option C
D. Option A

Answer: C,D

NEW QUESTION # 226
Given:

What is the result?

A. int main 1
B. Object main 1
C. Compilation fails
D. An exception is thrown at runtime
E. String main 1

Answer: E

NEW QUESTION # 227
Given:

What is the result?

A. AC
B. CC
C. A ClassCastException is thrown only at line n1.
D. AB
E. A ClassCastException is thrown only at line n2.

Answer: C

NEW QUESTION # 228
Given the code fragment:

Which three lines fail to compile?

A. Line 12
B. Line 11
C. Line 7
D. Line 8
E. Line 10
F. Line 9

Answer: A,C,E

NEW QUESTION # 229
Given the code fragment:

What is the result?

A. 1:2:3:
B. 1:2:3:4:5:
C. Compilation fails.
D. An ArrayoutofBoundsException is thrown at runtime.

Answer: B

NEW QUESTION # 230
Given: What is the result?

A. sc: class.SampleClass asc: class.AnotherSampleClass
B. sc: class.AnotherSampleClass asc: class.AnotherSampleClass
C. sc: class.Object asc: class.AnotherSampleClass
D. sc: class.AnotherSampleClass asc: class.SampleClass

Answer: B

Explanation:
Note: The getClass method Returns the runtime class of an object. That Class object is the object that is locked by static synchronized methods of the represented class.
Note: Because Java handles objects and arrays by reference, classes and array types are known as reference types.

NEW QUESTION # 231
Given the following code:

What are the values of each element in intArr after this code has executed?

A. 15, 90, 45, 90, 75
B. 15, 30, 90, 60, 90
C. 15, 30, 75, 60, 90
D. 15, 4, 45, 60, 90
E. 15, 60, 45, 90, 75

Answer: C

NEW QUESTION # 232
Given the code fragment:

Which three code fragments are valid at line n1?

A. Option E
B. Option A
C. Option B
D. Option C
E. Option D

Answer: A,D,E

NEW QUESTION # 233
Given: class Base {
public static void main(String[] args) {
System.out.println("Base " + args[2]);
}
}
public class Sub extends Base{
public static void main(String[] args) {
System.out.println("Overriden " + args[1]);
}
}
And the commands:
javac Sub.java
java Sub 10 20 30
What is the result?

A. Overridden 20
B. Overridden 20 Base 30
C. Base 30
D. Base 30 Overridden 20

Answer: A

NEW QUESTION # 234
Which of the following data types will allow the following code snippet to compile?

A. byte
B. double
C. long
D. float
E. int

Answer: B,D

Explanation:
Option B and D are the correct answer.
Since the variables I and j are floats, resultant will be float type too. So we have to use float
or primitive type which can hold float, such a primitive type is double, it has wider range
and also can hold floating point numbers, hence we can use double or float for the blank.
As explained above options B and D are correct.
long and int can't be used with floating point numbers so option A is incorrect.
Option E is incorrect as it have smaller range and also can't be used with floating point
numbers.
hnpsy/docs.oracle.com/javase/tutorial/java/javaOO/variables.html

NEW QUESTION # 235
Given:

What is the result?