Java Programming Test (Random Questions)

void start() {
A a = new A();
B b = new B();
a.s(b);
b = null; /* Line 5 */
a = null; /* Line 6 */
System.out.println("start completed"); /* Line 7 */
}

When is the B object, created in line 3, eligible for garbage collection?

Which two cause a compiler error?

1 float[ ] f = new float(3);

2 float f2[ ] = new float[ ];

3 float[ ]f1 = new float[3];

4 float f3[ ] = new float[3];

5 float f5[ ] = {1.0f, 2.0f, 2.0f};

Which of the following are loaded into main memory when the computer is booted?

Which of the following statements is correct about the C#.NET code snippet given below?

class Sample
{
private int i;
public Single j;
private void DisplayData()
{
Console.WriteLine(i + " " + j);
}
public void ShowData()
{
Console.WriteLine(i + " " + j);
}
}

A key:

Your network is configured as shown in the exhibit. "Engineering! and Salesl have DHCP installed up them." All the servers are Windows 2000 Server computers that use TCP/IP as the only network protocol. The sales department uses one subnet and has servers named Salesl and Sales2. The engineering department uses another subnet and has servers named Engineeringl and Engineering2. Salesl and Engineeringl are configured to act as DHCP servers. The router that joins the two subnets is not RFC 1542 compliant and does not support DHCP/BOOTP relay. You want to allow Salesl and Engineeringl to support client computers on each other's subnets. What should you do?

Which of the following are advantages of using NAT?

1. Translation introduces switching path delays.
2. Conserves legally registered addresses.
3. Causes loss of end-to-end IP traceability.
4. Increases flexibility when connecting to the Internet.
5. Certain applications will not function with NAT enabled.
6. Reduces address overlap occurrence.

Declare the following statement? "A pointer to an array of three chars".

Which of the following statements is correct about the C#.NET program given below if a value "ABCD" is input to it?

using System;
namespace IndiabixConsoleApplication
{
class MyProgram
{
static void Main(string[] args)
{
int index;
int val = 55;
int[] a = new int[5];
try
{
Console.Write("Enter a number: ");
index = Convert.ToInt32(Console.ReadLine());
a[index] = val;
}
catch(FormatException e)
{
Console.Write("Bad Format ");
}
catch(IndexOutOfRangeException e)
{
Console.Write("Index out of bounds ");
}
Console.Write("Remaining program ");
}
}
}

What servlet processor was developed by Apache Foundation and Sun?

What command is used to stop RIP routing updates from exiting out an interface but still allow the interface to receive RIP route updates?

Which three are methods of the Object class?

1 notify();
2 notifyAll();
3 isInterrupted();
4 synchronized();
5 interrupt();
6 wait(long msecs);
7 sleep(long msecs);
8 yield();

Who made the statement "if a robot can do a job, a person should not be doing it"?

The 2's complement of a binary no. is obtained by adding.....to its 1's complement.

In order for an instance of a derived class to completely take over a class member from a base class, the base class has to declare that member as

Which of the following is/are legal method declarations?

1 protected abstract void m1();

2 static final void m1(){}

3 synchronized public final void m1() {}

4 private native void m1();

What is the port number for NNTP?

Which of the following gets called when an object is being created?

What does fp point to in the program ?

#include<stdio.h>

int main()
{
    FILE *fp;
    fp=fopen("trial", "r");
    return 0;
}

Which of the following improves a query's processing time?