[Free] 2018(Jan) EnsurePass Examcollection Oracle 1z0-803 Dumps with VCE and PDF 21-30

Ensurepass.com : Ensure you pass the IT Exams
2018 Jan Oracle Official New Released 1z0-803
100% Free Download! 100% Pass Guaranteed!
http://www.EnsurePass.com/1z0-803.html

Java SE 7 Programmer I

Question No: 21

Given:

Ensurepass 2018 PDF and VCE

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

  1. int f = ps.indexOf {new patient (“Mike”)};

  2. int f = ps.indexOf (patient(“Mike”));

  3. patient p = new Patient (“Mike”); int f = pas.indexOf(P)

  4. int f = ps.indexOf(p2);

Answer: C

Question No: 22

A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the results?

  1. Compilation fails.

  2. The third argument is given the value null.

  3. The third argument is given the value void.

  4. The third argument is given the value zero.

  5. 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.

Answer: A

Question No: 23

Given:

Ensurepass 2018 PDF and VCE

What is the result?

A. 10 : 22 : 20

B. 10 : 22 : 22

C. 10 : 22 : 6

D. 10 : 30 : 6

Answer: B

Question No: 24

Given:

Ensurepass 2018 PDF and VCE

Which code fragment, when inserted at line 9, enables the code to print true?

  1. String str2 =str1;

  2. String str2 = new string (str1);

  3. String str2 = sb1.toString();

  4. String str2 = “Duke”;

Answer: B

Question No: 25

Given:

class Base {

// insert code here

}

public class Derived extends Base{ public static void main(String[] args) { Derived obj = new Derived(); obj.setNum(3);

System.out.println(quot;Square = quot; obj.getNum() * obj.getNum());

}

}

Which two options, when inserted independently inside class Base, ensure that the class is being properly encapsulated and allow the program to execute and print the square of the number?

  1. private int num;public int getNum() {return num;}public void setNum(int num) {this.num = num;}

  2. public int num;protected public int getNum() {return num;}protected public void setNum(int num) {this.num = num;}

  3. private int num;public int getNum() {return num;}private void setNum(int num) {this.num

    = num;}

  4. protected int num;public int getNum() {return num;}public void setNum(int num)

    {this.num = num;}

  5. protected int num;private int getNum() {return num;}public void setNum(intnum)

{this.num = num;}

Answer: A,D Explanation: Incorrect:

Not B: illegal combination of modifiers: protected and public

not C: setNum method cannot be private. not E: getNum method cannot be private.

Question No: 26

You are writing a method that is declared not to return a value. Which two are permitted in the method body?

  1. omission of the return statement

  2. return null;

  3. return void;

  4. return;

Answer: A,D Explanation:

Any method declared void doesn#39;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;

Question No: 27

boolean log3 = ( 5.0 != 6.0) amp;amp; ( 4 != 5);

boolean log4 = (4 != 4)|| (4 == 4); System.out.println(quot;log3:quot; log3 \nlog4quot; log4);

What is the result?

  1. log3:false log4:true

  2. log3:true log4:true

  3. log3:true log4:false

  4. log3:false log4:false

Answer: B

Question No: 28

Given:

Ensurepass 2018 PDF and VCE

What is the result?

A. 2 4 6 8 10 12

B. 2 4 6 8 10 12 14

  1. Compilation fails

  2. The program prints multiple of 2 infinite times

  3. The program prints nothing

Answer: B

Question No: 29

Given the code fragment:

String[] cartoons = {quot;tomquot;,quot;jerryquot;,quot;mickyquot;,quot;tomquot;};

int counter =0;

if (quot;tomquot;.equals(cartoons[0])) { counter ;

} else if (quot;tomquot;.equals(cartoons[1])) { counter ;

} else if (quot;tomquot;.equals(cartoons[2])) { counter ;

} else if (quot;tomquot;.equals(cartoons[3])) { counter ;

}

System.out.print(counter); What is the result?

  1. 1

  2. 2

  3. 4

  4. 0

Answer: A

Explanation: Counter will be executed only once because of the else if constructs.

Question No: 30

Which statement is true about the default constructor of a top-level class?

  1. It can take arguments.

  2. It has private access modifier in its declaration.

  3. It can be overloaded.

  4. The default constructor of a subclass always invokes the no-argument constructor of its superclass.

Answer: D

Explanation: In both Java and C#, a quot;default constructorquot; refers to a nullary constructor that is automatically generated by the compiler if no constructors have been defined for the class. The default constructor is also empty, meaning that it does nothing. A programmer- defined constructor that takes no parameters is also called a default constructor.

100% Ensurepass Free Download!
Download Free Demo:1z0-803 Demo PDF
100% Ensurepass Free Guaranteed!
Download 2018 EnsurePass 1z0-803 Full Exam PDF and VCE

EnsurePass ExamCollection Testking
Lowest Price Guarantee Yes No No
Up-to-Dated Yes No No
Real Questions Yes No No
Explanation Yes No No
PDF VCE Yes No No
Free VCE Simulator Yes No No
Instant Download Yes No No

Leave a Comment

(0 Comments)

Your email address will not be published. Required fields are marked *