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60 lines (53 loc) · 1.88 KB
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package com.Java.S6_Advanced;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Java_Lambda {
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);
}
}
}
interface PerformOperation {
boolean check(int a);
}
class MyMath {
public static boolean checker(PerformOperation p, int num) {
return p.check(num);
}
public PerformOperation isOdd(){
return (int a) -> a%2 !=0;
}
public PerformOperation isPrime(){
return (int a) -> java.util.stream.IntStream.range(2,a/2).noneMatch( n -> a%n==0);
}
public PerformOperation isPalindrome(){
return (int a) -> (new Integer(a)).toString().equals(
(new StringBuilder((new Integer(a)).toString())).reverse().toString()); //Don't you just love Java
}
}