Oracle Oracle Certifications 1Z0-808 Questions & Answers

• Question 291:

  Given the code fragment:

  

  What is the result if the integer aVar is 9?

  A. 10 Hello world!

  B. 10 Hello universe!

  C. 9 Hello world!

  D. Compilation fails.

  Correct Answer: B

• Question 292:

  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

  Correct Answer: D

• Question 293:

  Given the code fragment:

  

  Which modification enables the code fragment to print TrueDone?

  A. Replace line 5 With String result = "true"; Replace line 7 with case "true":

  B. Replace line 5 with boolean opt = l; Replace line 7 with case 1=

  C. At line 9, remove the break statement.

  D. Remove the default section.

  Correct Answer: A

• Question 294:

  Given: What is the result?

  

  A. C B A

  B. C

  C. A B C

  D. Compilation fails at line n1 and line n2

  Correct Answer: C

• Question 295:

  Given the fragment:

  String[][] arra = new String[3][];

  arra[0] = new String[]{"rose", "lily"};

  arra[1] = new String[]{"apple", "berry","cherry","grapes"};

  arra[0] = new String[]{"beans", "carrot","potato"};

  // insert code fragment here

  Which code fragment when inserted at line '// insert code fragment here', enables the code to successfully change arra elements to uppercase?

  A. String[][] arra = new String[3][]; arra[0] = new String[]{"rose", "lily"}; arra[1] = new String[]{"apple", "berry","cherry","grapes"}; arra[0] = new String[]{"beans", "carrot","potato"}; for (int i = 0; i < arra.length; i++) { for (int j=0; j < arra[i].length; j++) { arra[i][j] = arra[i][j].toUpperCase(); } }

  B. for (int i = 0; i < 3; i++) { for (int j=0; j < 4; j++) { arra[i][j] = arra[i][j].toUpperCase(); } }

  C. for (String a[]:arra[][]) { for (String x:a[]) {

  D. toUpperCase(); } }

  E. for (int i:arra.length) { for (String x:arra) { arra[i].toUpperCase(); } }

  Correct Answer: C

  Incorrect:

  not A: arra.length is 3, but the subarrays have 2, 3 and 4 elements. Index will be out of bound.

  not B: The subarrys are of different lengths. Index will be out of bound.

  not D: Compile error.

• Question 296:

  View the exhibit:

  public class Student {

  public String name = "";

  public int age = 0;

  public String major = "Undeclared";

  public boolean fulltime = true;

  public void display() {

  System.out.println("Name: " + name + " Major: " + major); }

  public boolean isFullTime() {

  return fulltime;

  }

  }

  Which line of code initializes a student instance?

  A. Student student1;

  B. Student student1 = Student.new();

  C. Student student1 = new Student();

  D. Student student1 = Student();

  Correct Answer: C

• Question 297:

  Given the fragment: What is the result?

  

  A. 13480.0

  B. 13480.02

  C. Compilation fails

  D. An exception is thrown at runtime

  Correct Answer: A

• Question 298:

  Given the code fragment:

  

  Which code fragment, when inserted at line 3, enables the code to print 10:20?

  A. int[] array n= new int[2];

  B. int[] array; array = int[2];

  C. int array = new int[2];

  D. int array [2] ;

  Correct Answer: A

• Question 299:

  Given:

  public class TestOperator {

  public static void main(String[] args) {

  int result = 30 -12 / (2*5)+1;

  System.out.print("Result = " + result);

  }

  }

  What is the result?

  A. Result = 2

  B. Result = 3

  C. Result = 28

  D. Result = 29

  E. Result = 30

  Correct Answer: E

• Question 300:

  Given:

  public class Test {

  public static void main(String[] args) {

  int arr[] = new int[4];

  arr[0] = 1;

  arr[1] = 2;

  arr[2] = 4;

  arr[3] = 5;

  int sum = 0;

  try {

  for (int pos = 0; pos <= 4; pos++) {

  sum = sum + arr[pos];

  }

  } catch (Exception e) {

  System.out.println("Invalid index");

  }

  System.out.println(sum);

  }

  }

  What is the result?

  A. 12

  B. Invalid Index

  C. Invalid Index

  D. Compilation fails

  Correct Answer: B

  Explanation: The loop ( for (int pos = 0; pos <= 4; pos++) { ), it should be pos <= 3, causes an exception, which is caught. Then the correct sum is printed.