[Free] 2018(Jan) EnsurePass Examcollection Oracle 1z0-803 Dumps with VCE and PDF 91-100

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Java SE 7 Programmer I

Question No: 91

Given:

Ensurepass 2018 PDF and VCE

What is the result?

  1. 6 5

    6

    4

  2. 6 5

    5

    4

  3. 6 5

    6

    6

  4. 6 5

6

5

Answer: A Explanation:

Within main z is assigned 6. z is printed. Output: 6

Within doStuff z is assigned 5.DoStuff2 locally sets z to 4 (but MyScope.z is set to 4), but in Dostuff z is still 5. z is printed. Output: 5

Again z is printed within main (with local z set to 6). Output: 6

Finally MyScope.z is printed. MyScope.z has been set to 4 within doStuff2(). Output: 4

Question No: 92

Given:

Ensurepass 2018 PDF and VCE

What is the result?

  1. Hello

  2. Default

  3. Compilation fails

  4. The program prints nothing

  5. An exception is thrown at run time

Answer: A Explanation:

The program compilesfine. The program runs fine.

The output is: hello

Question No: 93

Given the code fragment:

Ensurepass 2018 PDF and VCE

What couldexpression1andexpression2be, respectively, in order to produce output -8, 16?

A. a, – -b

B. a, b- –

C. A , – – b

D. A , b – –

Answer: B

Question No: 94

Given:

Ensurepass 2018 PDF and VCE

How many objects have been created when the line / / do complex stuff is reached?

  1. Two

  2. Three

  3. Four

  4. Six

Answer: C

Question No: 95

Given the code fragment:

Ensurepass 2018 PDF and VCE

What is the result?

  1. Found Red

  2. Found Red Found Blue

  3. Found Red Found Blue Found White

  4. Found Red Found Blue Found White Found Default

Answer: B

Explanation: As there is no break statement after the case quot;Redquot; statement the case Blue statement will run as well.

Note: The body of a switch statement is known as a switch block. A statement in the switch block can be labeled with one or more case or default labels. The switch statement evaluates its expression, then executes all statements that follow the matching case label.

Each break statement terminates the enclosing switch statement. Control flow continues with the first statement following the switch block. The break statements are necessary because without them, statements in switch blocksfall through:All statements after the matching case label are executed in sequence, regardless of the expression of subsequent case labels, until a break statement is encountered.

Question No: 96

Given:

class Sports { int num_players;

String name, ground_condition;

Sports(int np, String sname, String sground){ num_players = np;

name = sname; ground_condition = sground;

}

}

class Cricket extends Sports { int num_umpires;

int num_substitutes;

Which code fragment can be inserted at line //insert code here to enable the code to compile?

  1. Cricket() {

    super(11, quot;Cricketquot;, quot;Condidtion OKquot;); num_umpires =3; num_substitutes=2;

    }

  2. Cricket() {

    super.ground_condition = quot;Condition OKquot;; super.name=quot;Cricketquot;; super.num_players = 11;

    num_umpires =3; num_substitutes=2;

    }

  3. Cricket() { this(3,2);

    super(11, quot;Cricketquot;, quot;Condidtion OKquot;);

    }

    Cricket(int nu, ns) { this.num_umpires =nu; this.num_substitutes=ns;

    }

  4. Cricket() { this.num_umpires =3; this.num_substitutes=2;

super(11, quot;Cricketquot;, quot;Condidtion OKquot;);

}

Answer: A Explanation: Incorrect:

not C, not D: call to super must be the first statement in constructor.

Question No: 97

Given the code fragment:

Ensurepass 2018 PDF and VCE

What is the result?

  1. 3 false 1

  2. 2 true 3

  3. 2 false 3

  4. 3 true 1

  5. 3 false 3

  6. 2 true 1

  7. 2 false 1

Answer: D Explanation:

The length of the element with index 0, {0, 1, 2}, is 3. Output: 3

The element with index 1, {3, 4, 5, 6}, is of type array. Output: true

The element with index 0, {0, 1, 2} has the element with index 1: 1. Output: 1

Question No: 98

View the exhibit.

Ensurepass 2018 PDF and VCE

Given the code fragment:

Ensurepass 2018 PDF and VCE

Which change enables the code to print the following? James age: 20

Williams age: 32

  1. Replacing line 5 with public static void main (String [] args) throws MissingInfoException, AgeOutofRangeException {

  2. Replacing line 5 with public static void main (String [] args) throws.Exception {

  3. Enclosing line 6 and line 7 within a try block and adding: catch(Exception e1) { //code goes here}

    catch (missingInfoExceptione2) { //code goes here} catch (AgeOutofRangeException e3) {//code goes here}

  4. Enclosing line 6 and line 7 within a try block and adding: catch (missingInfoException e2) { //code goes here}

catch (AgeOutofRangeException e3) {//code goes here}

Answer: C

Question No: 99

Which three are valid types for switch?

  1. int

  2. float

  3. double

  4. integer

  5. String

  6. Float

Answer: A,D,E 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.

Question No: 100

Given:

Ensurepass 2018 PDF and VCE

What is the result?

  1. Compilation fails

  2. An exception is thrown at runtime

  3. There is no result because this is not correct way to determine the hash code

D. Hash is: 111111, 44444444, 999999999

Answer: A Explanation:

The compilation fails as SampleClassA and SampleClassB cannot overrideSampleClass because the return type of SampleClass is int, while the return type of SampleClassA and SampleClassB is long.

Note: If all three classes had the same return type the output would be: Hash is : 111111, 44444444, 999999999

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