Java Technologies

Question: Which of the following is a well-known HTTP port?
A
21

B
25

C
8080

D
80

E
137

Note: Not available
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Question: What is the output of the given console application?public class Test31 {
        public static void main(String[] args) {
                test();
        }
        public static void test() {
                try {
                        System.out.print("-try");
                        return;
                } catch (Exception e) {
                        System.out.print("-catch");
                } finally {
                        System.out.print("-finally");
                }
        }
}
A-try

B-try-catch

C-try-finally

D-try-catch-finally

Note: Not available

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Question: Which of these interfaces are used by implementations of models for JTable?
A
TableModel

B
TableColumnModel

C
TableSelectionModel

D
ListModel

Note: Not available
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Question: Which of the following require explicit try/catch exception handling by the programmer?
A
Accessing a method in another class

B
Attempting to open a network socket

C
Attempting to open a file

D
Traversing each member of an array

Note: Not available
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Question: What is the output of the given program?public class Test89 {
        public static void main(String[] args) {
                T x = new T(""X"", null); x.start();
                T y = new T(""Y"", x);    y.start();
                T z = new T(""Z"", y);    z.start();
        }
}
class T extends Thread {
        private Thread predecessor;
        private String name;
        public T(String name, Thread predecessor) { 
                this.predecessor = predecessor; 
                this.name = name; 
        }
        public void run() {
                try {
                        Thread.sleep((int)(Math.random()*89));
                        System.out.print(name);
                } catch (InterruptedException ie) {
                        ie.printStackTrace();
                }
        }
}
AAlways XYZ

BAlways ZYX

CAny of the following: XYZ, XZY, YXZ, YZX, ZXY, ZYX

DAny of the following: XYZ, ZYX

Note: Not available

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Question: Which of the following code snippets will take transform input string "2012/06/05"  to output string "05 - 06 - 2012"?
A String dateString = "2012/06/05"; 
Date date = new SimpleDateFormat("yyyy/MM/dd").parse(dateString); 
SimpleDateFormat sdf = new SimpleDateFormat("dd - MM - yyyy");
System.out.println(sdf.format(date));

B String dateString = "2012/06/05"; 
Date date = new SimpleDateFormat("yyyy/MM/dd").format(dateString); SimpleDateFormat sdf = new SimpleDateFormat("dd - MM - yyyy"); System.out.println(sdf.parse(date));

C String dateString = "2012/06/05"; 
Date date = new SimpleDateFormat("dd - MM - yyyy").format(dateString); 
SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
System.out.println(sdf.parse(date));

D String dateString = "2012/06/05"; 
Date date = new SimpleDateFormat("dd - MM - yyyy").parse(dateString); 
SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd"); 
System.out.println(sdf.format(date));

Note: Not available

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Question: Which statement is true regarding ServletContext Initialization Parameters in the deployment descriptor?
A
They are accessible by all servlets in a given web application.

B
They are accessible by all servlets in a given session.

C
They are accessible by all servlets in a given HTTP request.

D
hey are accessible by all servlets in a given container.

Note: Not available
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Question: Which of the following statements is true of the HashMap class?
A
It stores information as key/value pairs.

B
Elements are returned in the order they were added.

C
It does not permit null keys.

D
It does not permit null values.

Note: Not available
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Question: Which distributed object technology is most appropriate for systems that consist of objects written in different languages and that execute on different operating system platforms?
A
RMI

B
CORBA

C
COBRA

D
DCOM

E
COM

Note: Not available
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Question: What is the output of the given code?public class Test15 {
        public static void main(String[] args) {
                VO a = new VO(2);
                VO b = new VO(3);
                swapONE(a, b);
                print(a, b);
                swapTWO(a, b);
                print(a, b);
        }

        private static void print(VO a, VO b) {
                System.out.print(a.toString() + b.toString());
        }

        public static void swapONE(VO a, VO b) {
                VO tmp = a;
                a = b;
                b = tmp;
        }
        public static void swapTWO(VO a, VO b) {
                int tmp = a.x;
                a.x = b.x;
                b.x = tmp;
        }
}

class VO {
        public int x;
        public VO(int x) {
                this.x = x;
        }
        public String toString() {
                return String.valueOf(x);
        }        
}
A2332

B3232

C3223

D2323

Note: Not available

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Question: Which of the following is a well-known HTTP port?

Question: Which of these interfaces are used by implementations of models for JTable?

Question: Which of the following require explicit try/catch exception handling by the programmer?

Question: Which of the following code snippets will take transform input string "2012/06/05" to output string "05 - 06 - 2012"?

Question: Which statement is true regarding ServletContext Initialization Parameters in the deployment descriptor?

Question: Which of the following statements is true of the HashMap class?

Question: Which distributed object technology is most appropriate for systems that consist of objects written in different languages and that execute on different operating system platforms?