Latest Oracle 1z0-808 First Attempt, Exam real Dumps Updated [Sep-2021]
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NEW QUESTION 76
Given the code fragment:
Which code fragment, when inserted at line n1, enables the App class to print Equal?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: B
NEW QUESTION 77
Given the following class declarations:
Which answer fails to compile?
- A. Option A
- B. Option D
- C. Option B
- D. Option C
- E. Option E
Answer: B
NEW QUESTION 78
Given:
What is the result?
- A. A B D
- B. A B C D
- C. A C D D
- D. A C D
- E. A B D C
Answer: C
NEW QUESTION 79
Given the code fragment:
Which action enables it to print AB?
- A. Comment line 20.
- B. Comment line 19.
- C. Comment line 16.
- D. Comment lines 18 to 21.
Answer: A
NEW QUESTION 80
Given:
class Cake {
int model;
String flavor;
Cake() {
model = 0;
flavor = "Unknown";
}
}
public class Test {
public static void main(String[] args) {
Cake c = new Cake();
bake1(c);
System.out.println(c.model + " " + c.flavor);
bake2(c);
System.out.println(c.model + " " + c.flavor);
}
public static Cake bake1(Cake c) {
c.flavor = "Strawberry";
c.model = 1200;
return c;
}
public static void bake2(Cake c) {
c.flavor = "Chocolate";
c.model = 1230;
return;
}
}
What is the result?
- A. 1200 Strawberry 1200 Strawberry
- B. 0 unknown 0 unknown
- C. 1200 Strawberry 1230 Chocolate
- D. Compilation fails
Answer: C
Explanation:
1200 Strawberry 1230 Chocolate
NEW QUESTION 81
Given the code fragment:
Test.java:
Which is the result?
- A. Compilation fails in the Employeeclass.
- B. Both the Employeeclass and the Testclass fail to compile.
- C.
- D.
- E. Compilation fails in the Testclass.
Answer: E
NEW QUESTION 82
Given:
What is the result?
- A. Compilation fails.
- B. 9 25
- C. 3 5
- D. 0 0
Answer: C
NEW QUESTION 83
Given the code fragment:
What is the result?
- A. Compilation fails only at line n1
- B. Compilation fails at both line n1 and line n2
- C. Jesse 25Walter 52
- D. Compilation fails only at line n2
Answer: B
NEW QUESTION 84
Which two actions will improve the encapsulation of a class?
- A. Changing the return type of a method to void
- B. Changing the access modifier of a field from public to private
- C. Removing the public modifier from a class declaration
- D. Returning a copy of the contents of an array or ArrayList instead of a direct reference
Answer: B,D
Explanation:
Reference:
http://www.tutorialspoint.com/java/java_access_modifiers.htm
NEW QUESTION 85
Given the code fragment:
int b = 3;
if ( !(b > 3)) {
System.out.println("square ");
}{
System.out.println("circle ");
}
System.out.println("...");
What is the result?
- A. Compilation fails.
- B. square...
- C. circle...
- D. squarecircle...
Answer: D
NEW QUESTION 86
You are asked to create a method that accepts an array of integers and returns the highest value from that array.
Given the code fragment:
Which method signature do you use at line n1?
- A. static int findMax (int [] numbers)
- B. final int findMax (int [] )
- C. public int findMax (int [] numbers)
- D. static int[] findMax (int max)
Answer: C
NEW QUESTION 87
You are developing a banking module. You have developed a class named ccMask that has a maskcc method.
Given the code fragment:
You must ensure that the maskcc method returns a string that hides all digits of the credit card number except the four last digits (and the hyphens that separate each group of four digits).
Which two code fragments should you use at line n1, independently, to achieve this requirement? (Choose two.)
- A. Option D
- B. Option C
- C. Option B
- D. Option A
Answer: B,C
NEW QUESTION 88
Given:
What is the result?
- A. Compilation fails.
- B. 97 98
99 100 101 102 103 - C. A NullPointerException is thrown at runtime.
- D. 97 98
99 100 null null null - E. An ArraylndexOutOfBoundsException is thrown at runtime.
Answer: D
NEW QUESTION 89
Consider
Integer number = Integer.valueOff 808.1");
Which is true about the above statement?
- A. It will not compile.
- B. A NumberFormatException will be throw.
- C. The value of the variable number will be 808.1
- D. The value of the variable number will be 0.
- E. The value of the variable number will be 808
Answer: B
Explanation:
The Integer class value of 0 returns an Integer from given string. But we need to pass string which has correct format for integer otherwise it will throw a NumberFormatException. In this case we have passed string which is not an integer value (since what we passed is fractional number), so option D is correct.
NEW QUESTION 90
Given the code fragment:
Which modification enables the code to print 54321?
- A. Replace line 6 with --x; and, at line 7, insert system, out. print (x);
- B. At line7, insert x --;
- C. Replace line 12 With return (x > 0) ? false: true;
- D. Replace line 6 with System, out. print (--x) ;
Answer: D
NEW QUESTION 91
Given the code fragment:
Which three lines fail to compile? (Choose three.)
- A. Line 8
- B. Line 9
- C. Line 7
- D. Line 12
- E. Line 10
- F. Line 11
Answer: C,D,E
NEW QUESTION 92
You are writing a method that is declared not to return a value. Which two are permitted in the method body?
- A. return;
- B. return void;
- C. omission of the return statement
- D. return null;
Answer: A,C
Explanation:
Any method declared void doesn't return a value. It does not need to contain a return
statement, but it may do so. In such a case, a return statement can be used to branch out
of a control flow block and exit the method and is simply used like this:
return;
NEW QUESTION 93
Given:
What is the result?
- A. 6 8 10
- B. 0 1 2
- C. 6 7 8
- D. Compilation fails
- E. 7 8 9
Answer: C
NEW QUESTION 94
Given the code fragment:
Which code fragment at line 10 prints Welcome 100?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: B
NEW QUESTION 95
You are developing a banking module. You have developed a class named ccMask that has a maskcc method.
Given the code fragment:
You must ensure that the maskcc method returns a string that hides all digits of the credit card number except the four last digits (and the hyphens that separate each group of four digits).
Which two code fragments should you use at line n1, independently, to achieve this requirement? (Choose two.)
- A. Option D
- B. Option C
- C. Option B
- D. Option A
Answer: B,C
NEW QUESTION 96
Given:
What is the result?
- A. true:true
- B. false:true
- C. true:false
- D. false:false
Answer: B
NEW QUESTION 97
Given the code fragment:
What is the result?
- A. A ClassCastException is thrown at line n2.
- B. Compilation fails at line n1.
- C. Compilation fails at line n2.
- D. A ClassCastException is thrown at line n1.
- E. Sum is 600
Answer: C
NEW QUESTION 98
......
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