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My solution:
interface Predicate{
boolean test(int a);
} public class Solution {
public static void main(String[] args) { Scanner scan = new Scanner(System.in); int full = scan.nextInt(); while(full--> 0){ int code = scan.nextInt(); int number = scan.nextInt(); if (code==1){ boolean a = op(n-> isOdd(n), number); System.out.println(a==true?"EVEN":"ODD"); }else if(code==2){ boolean a = op(n-> isPrime(n), number); System.out.println(a==true?"PRIME":"COMPOSITE"); }else{ boolean a = op(n-> isPalindrome(n), number); System.out.println(a==true?"PALINDROME":"NOT PALINDROME"); } } } static boolean op(Predicate<Integer> predi, int number) { return predi.test(number); } static boolean isPrime(int number) { for(int i=2;i<(int)Math.sqrt(number);i++){ if(number%i==0) return false; } return true; } static boolean isPalindrome(int number) { String c = ""+number; StringBuilder b = new StringBuilder(c).reverse(); int d = Integer.parseInt(b.toString()); return number==d; } static boolean isOdd(int number) { return number%2==0; }
}
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Java Lambda Expressions
You are viewing a single comment's thread. Return to all comments →
My solution:
interface Predicate{
} public class Solution {
}