[Q43-Q59] 1z0-808 Certification – The Ultimate Guide [Updated 2022]

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1z0-808 Certification – The Ultimate Guide [Updated 2022]

1z0-808 Practice Exam and Study Guides – Verified By ExamsTorrent

NO.43 Given:

And the code fragment:

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

NO.44 Given the code fragment:

Which two code fragments can be independently inserted at line n1 to enable the code to print the elements of the array in reverse order?

while (x > 0) {x–;System.out.print(array[x]);}

do {x–;System.out.print(array[x]);} while (x >= 0);

while (x >= 0) {System.out.print(array[x]);x–;}

do {System.out.print(array[x]);–x;} while (x >= 0);

while (x > 0) {System.out.print(array[–x]);}

NO.45 Given the code fragment:

What is the result?
A:

B: Compilation fails only at line n1
C: Compilation fails only at line n2
D: Compilation fails at both line n1 and line n2

Option A

Option B

Option C

Option D

NO.46 Given the code fragment:
public class Test {
static String[][] arr =new String[3][];
private static void doPrint() {
//insert code here
}
public static void main(String[] args) {
String[] class1 = {“A”,”B”,”C”};
String[] class2 = {“L”,”M”,”N”,”O”};
String[] class3 = {“I”,”J”};
arr[0] = class1;
arr[1] = class2;
arr[2] = class3;
Test.doPrint();
}
}
Which code fragment, when inserted at line //insert code here, enables the code to print
COJ?

int i = 0;
for (String[] sub: arr) {
int j = sub.length -1;
for (String str: sub) {
System.out.println(str[j]);
i++;
}
}

private static void doPrint() {
for (int i = 0;i < arr.length;i++) {
int j = arr[i].length-1;
System.out.print(arr[i][j]);
}
}

int i = 0;
for (String[] sub: arr[][]) {
int j = sub.length;
System.out.print(arr[i][j]);
i++;
}

for (int i = 0;i < arr.length-1;i++) {
int j = arr[i].length-1;
System.out.print(arr[i][j]);
i++;
}

Incorrect:
not A: The following line causes a compile error:
System.out.println(str[j]);
Not C: Compile erro line:
for (String[] sub: arr[][])
not D: Output: C

NO.47 A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the results?

Compilation fails.

The third argument is given the value null.

The third argument is given the value void.

The third argument is given the value zero.

The third argument is given the appropriate falsy value for its declared type. F) An exception occurs when the method attempts to access the third argument.

NO.48 Given the code fragment:

What is the result?

Match 1

Match 2

No Match

A NullPointerException is thrown at runtime.

NO.49 Given the code fragment:
Int [] [] array = {{0}, {0, 1}, {0, 2, 4}, {0, 3, 6, 9}, {0, 4, 8, 12, 16}};
Systemout.printIn(array [4] [1]);
System.out.printIn (array) [1] [4]);
What is the result?

4 Null

Null

An IllegalArgumentException is thrown at run time

4 An ArrayIndexOutOfBoundException is thrown at run time

The first println statement, System.out.println(array [4][1]);, works fine. It selects the element/array with index 4, {0, 4, 8, 12, 16}, and from this array it selects the element with index 1, 4. Output: 4 The second println statement, System.out.println(array) [1][4]);, fails. It selects the array/element with index 1, {0, 1}, and from this array it try to select the element with index
4. This causes an exception.
Output: 4 Exception in thread “main” java.lang.ArrayIndexOutOfBoundsException: 4

NO.50 Given the code fragment:

What is the result?
Answer = 0

Invalid calculation

Compilation fails only at line n1.

Compilation fails only at line n2.

Compilation fails at line n1and line2.

NO.51 Given the content of three files:

Which statement is true?
Which statement is true?

Only the Java file compiles successfully.

Only the java file compiles successfully.

The A.Java and B.java files compile successfully.

The B.java and C.java files compile successfully.

The A.Java and C.java files compile successfully.

NO.52 Given the code snippet from a compiled Java source file:

and this output:

Which command should you run to obtain this output?

java MyFile 2

java MyFile 1 2 3 4

java MyFile 1 2 2

java MyFile 2 2

NO.53 Given the content of three files:

Which statement is true?

Only the A.Java file compiles successfully.

Only the B.java file compiles successfully.

Only the C.java file compiles successfully.

The A.Java and B.java files compile successfully.

The B.java and C.java files compile successfully.

The A.Java and C.java files compile successfully.

NO.54 Given the code fragment:

What is the result?

Compilation fails.

The program compiles, but it prints nothing.

HiHowAreYou removed

An UnsupportedOperationExceptionis thrown at runtime.

Explanation/Reference:
Explanation:

NO.55 Given the code fragment:

What is the result?

5 : 5

10 : 10

5 : 10

Compilation fails.

Explanation: References:

NO.56 Given the following class:

Which two changes would encapsulate this class and ensure that the area field is always equal to length * heightwhenever the Rectangle class is used?