Fibonacci Series in Java

Fibonacci Series in Java - Java programming language tutorial on how to get series of fiboncacci in java.

Fibonacci Series in Java

import java.io.*;
class fibo{
public static void main(String args[])throws IOException{

Integer a,i;
Integer b,c,d,e,f,j;
String s1,s2;
Integer temp;
Integer add,mul,sub,div;

InputStreamReader in=new InputStreamReader(System.in);
BufferedReader br=new BufferedReader(in);

System.out.print("Enter the value of a = ");
s1=br.readLine();

System.out.print("Enter the value of b = " );
s2=br.readLine();


a=Integer.valueOf(s1);
b=Integer.valueOf(s2);

c=a+b;
d=a*b;
e=a-b;
f=a/b;

System.out.println("    addition of two number= " +c);

System.out.println("    subtraction of two number= " +e);

System.out.println("    multiplication of two  number= "+d);

System.out.println("    division of two number= "+f);

add=c;
mul=d;

temp=add;
add=mul;
mul=temp;

sub=e;
div=f;

temp=sub;
sub=div;
div=temp;

System.out.println("\n\nAfter swapping value");

System.out.println("      After swapping the addition is= "+add);
System.out.println("      After swapping the multiplication is= "+mul);

System.out.println("      After swapping the sub is= "+sub);
System.out.println("      After swapping the division is= "+div);

System.out.println("\n\nSwaping without third variable");

add=add+mul;
mul=add-mul;
add=add-mul;

div=div+sub;
sub=div-sub;
div=div-sub;

System.out.println("      After swapping the addition is= "+add);
System.out.println("      After swapping the multiplication is= "+mul);
System.out.println("      After swapping the sub  is="+sub);
System.out.println("      After swapping the division is="+div);

Integer s=0;
if(a<b){
for(i=a;i<=b;i++)
{
  s=s+i;
}

System.out.println("The series summation is= "+s);
}
else{
    System.out.println("\n\nWarning :::::::");
    System.out.println("The series summation is not possible.");
}

      if ( s % 2 == 0 )

{
   System.out.println("The series summation number is even.");
}
else{
     System.out.println("The series summation number is odd.");
}

Integer h=1;
for(i=a;i<=b;i++)
{
    h=h*i;
}
       System.out.println("The factorial number of b to a is :"+h);

Integer n=9;
System.out.print("Fibonacci Series is =");
for(i=1;i<=9;i++){
System.out.print(" "+a);
c=a+b;
a=b;
b=c;

}
}
}