Question

wap in java to display prime fibonacci series​

Answer 1

Answer:

import java.io.*;

class PrimeFibonacci{

public static void main(String args[])throws IOException{

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

System.out.print("M = ");

int m = Integer.parseInt(br.readLine());

System.out.print("N = ");

int n = Integer.parseInt(br.readLine());

if(m >= n){

System.out.println("Invalid range!");

return;

}

for(int i = m; i <= n; i++){

if(!isPrime(i))

continue;

int num = 1;

int result = fibo(num);

while(result < i){

num++;

result = fibo(num);

}

if(result == i)

System.out.print(i + "\t");

}

System.out.println();

}

public static boolean isPrime(int num){

int f = 0;

for(int i = 1; i <= num; i++){

if(num % i == 0)

f++;

}

if(f == 2)

return true;

return false;

}

public static int fibo(int num){

if(num == 1)

return 0;

else if(num == 2)

return 1;

return fibo(num - 1) + fibo(num - 2);

}

}

Explanation:

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