Tag: technology

Questions Related to technology

Click the Exhibit button. 1. public class Car { 2. private int wheelCount; 3. private String vin; 4. public Car(String vin) { 5. this.vin = vin; 6. this.wheelCount = 4; 7. } 8. public String drive() { 9. return “zoom-zoom”; 10. } 11. public String getInfo() { 12. return “VIN: “+ vin + “wheels: “+ wheelCount; 13. } 14. } And: 1. public class MeGo extends Car { 2. public MeGo(String vin) { 3. this.wheelCount = 3; 4. } 5. } What two must the programmer do to correct the compilation errors? (Choose two.)
technology programming languages

  1. insert a call to this() in the Car constructor

  2. insert a call to this() in the MeGo constructor

  3. insert a call to super() in the MeGo constructor

  4. insert a call to super(vin) in the MeGo constructor

  5. change the wheelCount variable in Car to protected

  6. change line 3 in the MeGo class to super.wheelCount = 3;

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Correct Option: D,E

Given: 1. public class Blip { 2. protected int blipvert(int x) { return 0; } 3. } 4. class Vert extends Blip { 5. // insert code here 6. } Which five methods, inserted independently at line 5, will compile? (Choose five.)

technology programming languages

  1. public int blipvert(int x) { return 0; }

  2. protected long blipvert(int x, int y) { return 0; }

  3. private int blipvert(long x) { return 0; }

  4. protected long blipvert(int x) { return 0; }

  5. protected int blipvert(long x) { return 0; }

  6. protected long blipvert(long x) { return 0; }

Show answer
Correct Option: A,B,C,E,F

Which four are true? (Choose four.)
technology programming languages

  1. Has-a relationships should never be encapsulated.

  2. Has-a relationships should be implemented using inheritance.

  3. Has-a relationships can be implemented using instance variables.

  4. Is-a relationships can be implemented using the extends keyword.

  5. Is-a relationships can be implemented using the implements keyword.

  6. An array or a collection can be used to implement a one-to-many has-a relationship.

Show answer
Correct Option: C,D,E,F

Given: 11. public class Key { 12. private long id1; 13. private long 1d2; 14. 15. // class Key methods 16. } A programmer is developing a class Key, that will be used as a key in a standard java.util.HashMap. Which two methods should be overridden to assure that Key works correctly as a key? (Choose two.)
technology programming languages

  1. public int hashCode()

  2. public boolean equals(Key k)

  3. public int compareTo(Object o)

  4. public boolean equals(Object o)

  5. public boolean compareTo(Key k)

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Correct Option: A,D

Flex 3 requires which player to run
technology web 2.0

  1. Media Player 9

  2. Flash Player 9

  3. Media Player 8

  4. Flash Player 8

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Correct Option: B

What is the two major files in a Flex Application ?
technology web 2.0

  1. Java Script & xml

  2. xml & Action Script

  3. mxml & Action Script

  4. mxml & Java Script

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Correct Option: C

Flex Builder 3 IDE is based on
technology web 2.0

  1. Java

  2. Eclipse

  3. EditPlus

  4. TextPad

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Correct Option: B

What is a Flex inbuilt component from below ?
technology web 2.0

  1. Datasets

  2. HashTable

  3. StackGroup

  4. Accordian

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Correct Option: D

What do you mean by RIA ?
technology web 2.0

  1. Rich Internet Applications

  2. Reach Internet Application

  3. Rich & Inteligent Application

  4. Reach & Inteligent Application

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Correct Option: A

Please Leave This Question
technology web 2.0

  1. Radio

  2. DeskTop

  3. Television

  4. MusicPlayer

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Correct Option: A