Basic Java Program for Selenium Interview -1

1. Write a program of Fibonacci series.

    public class Fibbonacci {

public static void main(String args[]){

int n1=0, n2=1, i, n3, count=10;

System.out.print(n1 + " " + n2);// printing 0 and 1
for (i=2; i<count; ++i )
{

n3=n1+n2;
System.out.print(" " +n3);
n1=n2;
n2=n3;


}

}

}

//output : 0 1 1 2 3 5 8 13 21 34


2. Write a program of Palindrome Number.

    It is a number that is same after reverse.

    class PalindromeTest{
public static void main(String args[]){
  int r,sum=0,tem; 
  int n=545;//It is the number variable to be checked for palindrome

  temp=n; 
  while(n>0){ 
   r=n%10;
   sum=(sum*10)+r; 
   n=n/10; 
  } 
  if(temp==sum) 
   System.out.println("palindrome number "); 
  else 
   System.out.println("not palindrome"); 
}
}


3. Write a program of factorial number.

public class Factorial {

public static void main(String aa[]){

int i, fact=1,number=5;
for(i=1; i<=number; i++){

fact=fact*i;

}
System.out.println("factorial of number "+ number + " is:" + fact);
}
}


4. Write a program of reverse a string.

public class StringCharReverse {

public static void main(String[] args) {

String s1="Hello Java";
char[] c= s1.toCharArray();      // toCharArray() is a method to return array of char.

for(int i=c.length-1; i>=0; i--){

System.out.println(c[i]);

}

  }


}

5. Write a program to find the length of a string.

      Method 1:

      public class String_Length_Test {

public static void main(String[] args) {

String str = "I live in Pune";

String[] s2=str.trim().split(" ");

System.out.println(s2.length);

}

}

    Method 2:

     public class String_Length_Test2 {

public static void main(String[] args) {

System.out.println("Enter a string:");

Scanner sc=new Scanner(System.in);

String s1=sc.nextLine();

int word = 1;

for(int i = 0; i<=s1.length()-1; i++){

if(s1.charAt(i)==' ' && s1.charAt(i+1)!= ' '){

word++;

}

}

System.out.println(word);

}

}