JavaProgramming/HackerRank/ThirtyTwo.java at main · Varadraj75/JavaProgramming · GitHub

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package HackerRank;

import java.io.*;

import java.util.*;

interface PerformOperation {

boolean check(int a);

}

class MyMath {

public static boolean checker(PerformOperation p, int num) {

return p.check(num);

}

// Write your code here

PerformOperation isOdd(){

PerformOperation po = (int a)-> a%2 ==0 ? false: true;

return po;

}

PerformOperation isPrime()

{

PerformOperation po = (int a)->

{

if(a== 1) return true;

else

{

for (int i=2; i<Math.sqrt(a); i++)

if(a%i==0) return false;

return true;

}

};

return po;

}

PerformOperation isPalindrome(){

ArrayList<Integer> aa = new ArrayList<>();

PerformOperation po = (int a)->

{

String str = Integer.toString(a);

String reverse = "";

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

{

reverse = reverse + str.charAt(i);

}

if (reverse.equals(str)) return true;

return false;

};

return po;

}

public class ThirtyTwo {

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

MyMath ob = new MyMath();

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

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

PerformOperation op;

boolean ret = false;

String ans = null;

while (T--> 0) {

String s = br.readLine().trim();

StringTokenizer st = new StringTokenizer(s);

int ch = Integer.parseInt(st.nextToken());

int num = Integer.parseInt(st.nextToken());

if (ch == 1) {

op = ob.isOdd();

ret = ob.checker(op, num);

ans = (ret) ? "ODD" : "EVEN";

} else if (ch == 2) {

op = ob.isPrime();

ret = ob.checker(op, num);

ans = (ret) ? "PRIME" : "COMPOSITE";

} else if (ch == 3) {

op = ob.isPalindrome();

ret = ob.checker(op, num);

ans = (ret) ? "PALINDROME" : "NOT PALINDROME";

}

System.out.println(ans);

}

JavaProgramming/HackerRank/ThirtyTwo.java at main · Varadraj75/JavaProgramming · GitHub

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