Program : Domain name service (DNS) By : Kapil Lohia   import java.net.*;   class dns { public static void main(String args[]) throws Exception { try { InetAddress[] address=InetAddress.getAllByName("java.sun.com"); for(int j=0;j<address.length;j++) System.out.println(address[j]); }   catch(Exception e) { System.out.println("Error in accessing Internet :"+e); } } }

while((c=isr.read())!=-1)
{
chars++;
if(c==’\n’)
lines++;
if(c==’\t’ || c==’ ‘ || c==’\n’)
++words;
if(chars!=0)
++chars;
}

Wtire a Java program that reads a file and displays the file on the screen, with a line number before each line.

Write a Java program that reads on file name from the user then displays information about whether the file exists,whether the file is readable,whether the file is writable,the type of the file and the length of the file in bytes

Write a Java program that reads a line of integers and displays each integer and sum of all integers using String Tokenizer class

System.out.println(“Enter the first matrix:”);
Scanner input=new Scanner(System.in);
for(int i=0;i<3;i++)
for(int j=0;j<3;j++)
a[i][j]=input.nextInt();

for(int j=i+1;j {
if(names[i].compareTo(names[j])<0)
{
temp=names[i];
names[i]=names[j];
names[j]=temp;
}
}

StringBuffer s1=new StringBuffer(args[0]);
StringBuffer s2=new StringBuffer(s1);
s1.reverse();
System.out.println(“Given String is:”+s2);
System.out.println(“Reverse String is”+s1);

Write a Java program that prompts the user for an integer and then prints out all prime numbers up to that integer.

Write a Java program that uses both recursive and non-recursive functions to print nth value in the Fibonacci sequence.