Question { Google, 19589 }

why should i hire u

Answer

Am hard working and innovative with a huge knowledge about
the world,technolgy and sciences and i think i can put the
skills,work and innovation for the company and hence leading
the company to top ranked.

Question { Persistent, 10799 }

why Java is not purely object oriented?

Answer

java is not purely Object Oriented bcoz java is both
compiled and interpreted.
as we knoe c is a compiled language(structured language
,procedural language)
where as java is compiled and interpreted.
therefore we can say that java is object oriented but not
purely object oriented.

Question { InterGraph, 12764 }

What is a must for multitasking?
a) Process preemption
b) Paging
c) Virtual memory
d) None of the above

Answer

a)process preemption

Question { TCS, 16753 }

what is page hit in operating system?

Answer

if the searched page is found in cache memory then it will
be a hit
if it is not found in cache memory then it is miss.

Question { Google, 25954 }

how to print a message to console without using main()
function?(do not use even static blocks also.)

Answer

class testing
{
public testing()
{
System.out.println("world");
}
}

public class Demo
{
static testing t = new testing();
public Demo()
{
}
}

Question { 3904 }

WHAT IS NV RAM ?

Answer

non volatile ram

Question { FCS, 12654 }

how to store and retrive a set of values without using an
array

Answer

import java.util.*;
import java.io.*;
public class Store
{
public static void main(String args[])
{
System.out.println
("enter number of elements to be stored");
Scanner cin=new Scanner(System.in);
int n=cin.nextInt();
Vector v=new Vector();
for(int i=0;i {
v.addElement(i);
}
System.out.println("the elements in vector are"+v);
}}

Is This Answer Correct ?

0 Yes

1 No

Question { IBM, 25021 }

how many keywords are present in "c"?

Answer

32

Question { 11623 }

How can we get the details for printing the employee
details at run time using JDBC connectivity? can u provide
the coding for that? Its urgent?

Answer

import java.sql.*;
import java.io.*;
public class Employeedetails
{
public static void main(String args[])
{
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection
con=DriverManager.getConnection("jdbc:odbc:employeeds");
Statement st=con.createStatement();
ResuleSet rs=st.executeQuery("select * from emp");//this
executes the query and get all the details from the table
employeeds
System.out.println("EId Ename Salary\n");
while(rs.next())
{
System.out.println(+rs.getInt(1)+"
"+rs.getString(2)+" "+rs.getString(3));

}//here 1 2 3 mentioned are the indices which are unique and
instead of 1 2 3 u can also provide the name of that
particular column name
and getXXX(index) ,here xxx is the type of the column like
int or float or string
st.close();
con.close();
}
catch(Exception e)
{
e.printStackTrace();
}

}
}

Question { Infosys, 25944 }

how to create a (*)pyramid using java codes???

Answer

import java.io.*;//package inherited from java class
import java.lang.*;
import java.util.*;
public class Pyramid
{
public static void main(String args[])throws IOException
{
System.out.println("Enter the height");
Scanner cin=new Scanner(System.in);
int n=cin.nextInt();
System.out.println("Enter the height of pyramid:");
for(int i=1;i<=n;i++){
for(int j=1;j<=(n-i);j++){
System.out.print(" ");
}
for(int k=1;k System.out.print("* ");
}
System.out.print("*");
System.out.println();
}
}
}

Is This Answer Correct ?

16 Yes

3 No

Question { IBM, 6471 }

How Can I Trace A Java Program . Please Give Me Step by Step
Process

Answer

//consider the follwing program part

for(int k = 0; k < 10; k++);
System.out.println("hi");
int k = 9
while(k < 10)
{
System.out.println("world");
k++;
}
//now lets trace the program as follows
start, at the for loop, k is initialized to 0 with a scope
local to the for loop itself.
k = 0
Is it less than 10? yup, so we enter the loop.
Next, we have output,
hi.
Since there is no brackets, the for loop applies only to the
very next line. In this case, the output. So, return to the
top of the loop, k increments by 1
k = 1
and we proceed again since 1 < 10.
The output "hi" is printed again.
Go back to the top of the loop, increment k, and recheck the
loop condition of k < 10. The above cycle repeats until k is
incremented and equals 10. Since 10 is not less than 10,
exit the for loop.
:
k = 10
next
Now, declare an integer k to be equal to 9.
k = 9
Note it has local scope to this part of the program but,
since the for for loop previous one is gone from memory, so
too is the integer k that it (the loop) declared.
Thus, there is no conflict. So, an integer variable k (one
different from the last) is now = 9

Check the while boolean condition and k is less than 10 so
enter the while loop.
Next, print the output
"world"
Next, increment k by 1 ("k++") so
k = 10
Check the while loop conditional again but, this time, it's
false. k is not less than 10 anymore. So, exit the while loop.

Question { 30809 }

What do you mean by an array ? explain with an example

Answer

Array is a collection of elements of similar data type and
these elements are stored in continuous memory locations.
int a[5] in c
creates an array of size 5 in continuos memory locations
whose indices will be 0,1,2,3,4.
in java A array in Java is like a fixed number of slots,
each slot holds a item, and all of them the same type.
int[] A;//array declaration in java
A=new int[10]; // 10 is the number of items
// now A is declared, and have assigned a value (initialized).