[Free] 2018(Jan) EnsurePass Testinsides Oracle 1z0-850 Dumps with VCE and PDF 91-100

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Java Standard Edition 5 and 6, Certified Associate Exam

Question No: 91 – (Topic 1)

Click the Exhibit button. Which, inserted at line 3 of the TestDrink class, demonstrates the quot;program to an interfacequot; principle?

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  1. Drinkable aDrink = DrinkableFactory.getDrinkable();

  2. Drinkable aDrink = new Drinkable();

  3. Tea aDrink = new Drinkable();

  4. Tea aDrink = new Tea();

Answer: A

Question No: 92 – (Topic 1)

Given:

Directory structure: projects

| src

| | foo

|

| classes

A file Clock.java in the /projects/src/foo directory The working directory /projects/src

The class Clock in package foo

Which command-line compiler invocation will create a foo directory within the classes directory, and then place the compiled Clock.class within that directory?

  1. javac -directory ../classes/foo foo/Clock.java

  2. javac -d ../classes/foo/Clock.java

  3. javac -d ../classes/foo foo.Clock.java

  4. javac -D foo/Clock.java

  5. javac -d ../classes foo/Clock.java

Answer: E

Question No: 93 – (Topic 1)

Given concrete class B is a subclass of concrete class A, and class A implements interface C, which two are examples of polymorphism? (Choose two.)

  1. use a reference variable of type C to refer to an instance of type B

  2. use a reference variable of type A to refer to an instance of type C

  3. use a reference variable of type C to refer to an instance of type A

  4. use a reference variable of type A to refer to an instance of type B

  5. use a reference variable of type B to refer to an instance of type A

Answer: A,C

Question No: 94 – (Topic 1)

Click the Exhibit button. Which code correctly implements the association between A and B?

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  1. class A { private B[] b;

    }

    class B { private A a;

    }

  2. class A { private B[] b;

    }

    class B { }

  3. class A { } class B { private A[] a;

    }

  4. class A { } class B { private A a;

    }

  5. class A { private B b;

    }

    class B { private A[] a;

    }

  6. class A { private B b;

}

class B { }

Answer: B

Question No: 95 – (Topic 1)

What is true about JavaScript clients?

  1. They CANNOT write to the client#39;s hard drive.

  2. They must be hosted by J2EE containers.

  3. They require Java Web Start technology to be deployed.

  4. They support all standard J2SE syntax.

Answer: A

Question No: 96 – (Topic 1)

Which is a valid definition of an interface called Transportable given another valid interface, Movable?

  1. class Movable extends Transportable { /*…*/ }

  2. interface Transportable extends Movable { /*…*/ }

  3. class Movable implements Transportable { /*…*/ }

  4. interface Transportable implements Movable { /*…*/ }

Answer: B

Question No: 97 – (Topic 1)

Click the Exhibit button.

Which class has a superclass relationship?

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  1. Z

  2. Y

  3. X

  4. W

Answer: B

Question No: 98 – (Topic 1)

Which two symbols are used to indicate the visibility of an attribute in UML? (Choose two.)

A.

B.

  1. amp;

  2. $

  3. *

Answer: A,B

Question No: 99 – (Topic 1)

Which two are valid examples of interface implementation? (Choose two.)

  1. class C implements D { }

  2. class C implements D E { }

  3. class C extends D { }

  4. class C implements D, E { }

  5. class C extends D, E { }

  6. class C extends D, implements E { }

Answer: A,D

Question No: 100 – (Topic 1)

Given:

  1. int time = 12;

  2. if ( time lt; 12 ) {

  3. System.out.println(quot;Good morningquot;); 9. }

  1. // insert code here

  2. System.out.println(quot;Good afternoonquot;);

12. }

  1. else if ( time gt;= 18 ) {

  2. System.out.println(quot;Good eveningquot;);

15. }

Which three, inserted independently at line 10, produce the output Good afternoon? (Choose three.)

  1. else if ( time gt; 12 || time lt;= 18 ) {

  2. else if ( time gt; 12 amp;amp; time gt;= 18 ) {

  3. if ( time gt;= 12 amp;amp; time lt; 18 ) {

  4. else if ( time gt;= 12 || time lt; 18 ) {

  5. else if ( time lt; 12 || time gt; 18) {

Answer: A,C,D

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