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310-025 Braindumps

 2008-01-05 18:20:26 来源:WEB开发网   
核心提示:Hamid310-02577%Hi every eXPected java PRogrammer whish u all the best I cleared the exam on 06-08-01 with grade 77% I am also MCSE. But this exam is not like a

  Hamid
  
  
  
  
  310-025
  
  
  
  
  77%
  
  
  
  
  Hi every eXPected java PRogrammer
  
  
  whish u all the best
  
  
  I cleared the exam on 06-08-01 with grade 77%
  
  
  I am also MCSE. But this exam is not like a microsoft exam. its too mUCh tough than that.Following are the steps which help me passing the exam.
  
  
  
  
  Firt of all i study the "Complete Reference" not all chapter just related chapter. Then i study "The complete java 2 certification study guide" by Simmon Robert and "A programmers guide to java certification" by Khalid Mughal.
  
  
  At last i done different Mock exams like Morcus greens three exams and khalid mughals mock exams and four days before exam i study the sasasite.com questions
  
  
  following are the question of exam which are right now in my memory.
  
  
  
  
  Prerequist: Determination and hardworking
  
  
  
  
  
  
  Q#1-Which are the reserved Words in java(choose two).
  
  
  Ans. 1-implements, 2-default
  
  
  
  
  Q#2-out put of the following code on execution
  
  
  
  
  int i = 1;
  
  
  while(i){
  
  
  
  
  do some thing
  
  
  
  
  }
  
  
  
  
  Ans. code will not compile
  
  
  
  
  Q#3- when the object created at line 3 will elligible garbage collected.
  
  
  1-public class foo{
  
  
  2-public object m(){
  
  
  3-Object o=new Float(2.14F);
  
  
  4-Object [] oa=new Object[1];
  
  
  5-oa[0]=o;
  
  
  6-o=null;
  
  
  7-return o;
  
  
  }
  
  
  }
  
  
  I choose after line 6 which was wrong.
  
  
  
  
  Q#4-almost four question on overriding overloading which was very simple.
  
  
  Q#5-out put when execute the following code
  
  
  
  
  public static void main(String arg[]){
  
  
  try{
  
  
  methodA();
  
  
  }catch(IOException io){
  
  
  System.out.println("caught IOException");
  
  
  }catch(Exception e){
  
  
  System.out.println("caught Exception");
  
  
  }
  
  
  }
  
  
  public void methodA(){
  
  
  throw new IOException();
  
  
  }
  
  
  }
  
  
  
  
  Ans-compilation error
  
  
  
  
  Q#6 Type in
  
  
  System.out.println(6^3);
  
  
  Ans-5
  
  
  
  
  Q#7 which give output "true" (choose two)
  
  
  
  
  Integer i = new Integer(5);
  
  
  Double d = new Double(5);
  
  
  Long l = new Long(5);
  
  
  option given was
  
  
  1-System.out.println(i==d);
  
  
  2-System.out.println(d==l);
  
  
  3-System.out.println(i.equal(d));
  
  
  4-System.out.println(i.equal(l));
  
  
  5-System.out.println(d.equal(l));
  
  
  i think all give "false" output ,all wording is same as i write
  
  
  i can not understand how he is aSKINg about true, because no one giving true output.
  
  
  
  
  Q#8 Type in, what was the result when the following code compile
  
  
  String s = new String("xyz");
  
  
  StringBuffer sb = new StringBuffer("abc");
  
  
  s = s.substring(2);
  
  
  System.out.println(s+sb);
  
  
  i am not sure about this question.
  
  
  
  
  Q#9 what collection used when uniqueness rquired and retrieve in natural order
  
  
  1-set
  
  
  2-sortedset
  
  
  3-map
  
  
  4-collection
  
  
  Ans- i choose sortedset.
  
  
  
  
  Q#10 what will be output when compile the following code
  
  
  public class x implements Runnable{
  
  
  private int x;
  
  
  private int y;
  
  
  
  
  public static void main(String args[] ){
  
  
  x that = new x();
  
  
  (new Thread(that)).start();
  
  
  (new Thread(that)).start();
  
  
  }
  
  
  public synchronized void run(){
  
  
  for( ; ; ){
  
  
  x++;
  
  
  y++;
  
  
  System.out.Println("x=" + x + ", y=" +y);
  
  
  
  
  Ans-value of x and y will be same on same and appears onece and will not twice
  
  
  
  
  Q#11 local classes can access only final variales(Question was something like that)
  
  
  Three question about inner and anonymous classes
  
  
  
  
  Q#12 output when following code compile and execute.
  
  
  public class Foo{
  
  
  public static void main(String[] args){
  
  
  try{
  
  
  return;}
  
  
  finally{ System.out.println("finally.");}
  
  
  }
  
  
  }
  
  
  Ans-finally
  
  
  
  
  Q#13 what ensure j will be 10 at line 16
  
  
  
  
  1 class A implements Runnable {
  
  
  2 int I;
  
  
  3 public void run () {
  
  
  4 try {
  
  
  5 Thread.sleep(5000);
  
  
  6 i=10;
  
  
  7 }catch(InterruptedException e) {}
  
  
  8 }
  
  
  9 }
  
  
  10 public class Test {
  
  
  11 public static void main (String args[]) {
  
  
  12 try {
  
  
  13 A a = new A();
  
  
  14 Thread t = new Thread(a);
  
  
  15 t.start();
  
  
  16
  
  
  17 int j= a.i;
  
  
  18 }catch (Exception e) {}
  
  
  19 }
  
  
  }
  
  
  Ans-t.join
  
  
  
  
  Q#14 method of mousemotionlistener interface
  
  
  A. public void mouseDragged(MouseEvent)
  
  
  B. public boolean mouseDragged(MouseEvent)
  
  
  C. public void mouseDragged(MouseMotionEvent)
  
  
  D. public boolean mouseDragged(MouseMotionEvent)
  
  
  E. public boolean mouseDragged(MouseMotionEvent)
  
  
  
  
  Answer:
  
  
  A
  
  
  
  
  Q#15 what will be the value of i
  
  
  int i = 0xfffffff1
  
  
  1-0
  
  
  2-1
  
  
  3-15
  
  
  4-could not compile
  
  
  
  
  Q#16 valid class declaration
  
  
  Ans-//comments any where then package statement then import statement .
  
  
  
  
  Q#17 What will be the most suitable access modifier of method if we want to access in the class and all its subclasses
  
  
  Ans-protected
  

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