Fresher Interview programs on java.

Hi Everyone ,

    This is Naresh Babu . I am B.Tech 2015 passed out.Now, i'm searching for a job. I have some experience while attending for the interviews.I got a thought  when i am in searching i faced a problem to learning programs so that I take a step forward and placed my practiced data in this blog i hope you guys can utilize this information.

The people who are going for the fresher interview this is most helpful..

 from first program on wards....
               
1. java write a basic program.
    
  
  class first
 {
  public static void main(String args[])
  {
   System.out.println("Welcome to Java");
   }
  }

output:
   Welcome to Java



2.Write a program to print Armstrong.,
    
  import java.util.*;//this is for using scanner class
class Armstrong
{
  public static void main(String args[])
  {
  Scanner sc=new Scanner(System.in);//by importing util package only we ca access the Scanner.
  System.out.println("Enter Your number");
  int i=sc.nextInt();
  int sum=0;
  int n=i;
  while(n!=0)
  {
  int j=n%10;
  sum=sum+j*j*j;
  n=n/10;
  }
  if(i==sum)
  {
  System.out.println("armstrong");
  }
  else
  {
  System.out.println("not armstrong");
  }
  }
}

3.Write a Java Program to print the Given number is Even or Odd.

import java.util.*;
class Eve
{
public static void main(String[] args)
{
Scanner nb=new Scanner(System.in);
System.out.print("Enter a Number :");
int n=nb.nextInt();
if(n%2==0)
 System.out.println(n+ " IS  Even Number");
 else
 System.out.println(n+ " IS  Odd Number");
 }
 }

  4.Write a program to print Fibbonacci number  from 1 to n  number.

import java.io.*;

import java.util.*;

class fibb

{

 public static void main(String args[])

 {

int first=0,temp;

     int second=1;

     Scanner sc=new Scanner(System.in);

     System.out.println("Enter your number");

     int n=sc.nextInt();

     System.out.println(first);

System.out.println(second);

     for(int i=2;i<n;i++)

      {

      temp=first+second;

      System.out.println(temp);

      first=second;

      second=temp; 

      }

   }

}   

5.Write a java program to swap the values without using temporary variable.

import java.util.*;

class Swap

{ 

 public static void main(String args[])

 {

  Scanner sc=new Scanner(System.in);

  System.out.println("Enter A value");

  int a=sc.nextInt();

  System.out.println("Enter B value");

  int b=sc.nextInt();

  

  System.out.println("Before Swapping A & B values are"+a+" "+b);

  a=a+b;

  b=a-b;

  a=a-b;

  System.out.println("After Swapping" +a+" "+b);

  }

  }

    

6.Write a program to print the Reverse Number for the Given Number.

import java.util.*;
class Reverse
{
public static void main(String[] args)
{
int i;
Scanner sc=new Scanner(System.in);
System.out.println("Enter Your Number");
i=sc.nextInt();
int n,sum=0;
 while(i!=0)
 {
 n=i%10;
 i=i/10;
 sum=(sum*10)+n;
 }
  System.out.println("Reverse number is\n"+sum);
}
}

7.Write a java program to print the Given number is Prime or not...
import java.util.*;
import java.io.*;
class Prime
{
 public static void main(String args[])
 {
int count=0;
int i;
Scanner sc=new Scanner(System.in);
         int n=sc.nextInt();
         for(i=2;i<n;i++)
 {
if(n%i==0)
      count=count+1;  
}
 
if(count==0){
System.out.println("  prime");}
else{
System.out.println(" not prime");}
  }
 }