InterviewSolution
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Write a class with the following method: 1. boolean prime(int n) which returns true if n is prime and false if n is not prime...2.void call() to display all two digit twin prime numbers |
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Answer» public class Prime {public static boolean prime(int n) {int c=0; for (int i=1;i<=n;i++) {if (n%i==0) c=c+1; } if (c==2) return true; else return false; } public VOID call() {int a=10,b=99,c=11,d; System.out.println("2 digit Twin prime NUMBERS are "); for (;a<=b;a++) {if (prime(a)) {d=c; c=a; if ((c-d)==2) System.out.println(d+","+c); } } } public static void main(STRING ARGS[]) {Prime ob=new Prime(); ob.call(); } }Explanation: |
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