Jawaban Live Coding 3(06/11/2019)

//SOAL ALAY


import java.util.*;
public class SoalLiveCoding3 {
    public static void main(String[] args) {
        boolean checkAlay = false;
        Scanner in = new Scanner(System.in);
        String kata = in.nextLine();
        String output = "";
        for (int i = 0; i < kata.length(); i++) {
            if(kata.cha(i) == '1' || kata.charAt(i) == '4' || kata.charAt(i) == '9'){
                checkAlay = true;
            }
        }
        if(checkAlay){
            for (int i = kata.length() - 1; i >= 0; i--) {
                switch(kata.charAt(i)){
                    case '1':
                        output += "i";
                        break;
                    case '4':
                        output += "a";
                        break;
                    case '9':
                        output += "g";
                        break;
                    default:
                        output += kata.charAt(i);
                        break;
                }
            }
            System.out.println(output);
        }else{
            System.out.println("Bukan Alay");
        }
    }
}
// REFERENSI LAIN SOAL ALAY
import java.io.*;
import java.util.*;

public class Solution {

    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
        Scanner in = new Scanner(System.in);
        String input = in.nextLine();
        String balik = "";
        boolean cek = false;
        for(int i = input.length() - 1; i >= 0; i--){
            switch(input.charAt(i)){
                case '1' :
                    balik += 'i';
                    cek = true;
                    break;
                case '4':
                    balik += 'a';
                    cek = true;
                    break;
                case '9':
                    balik += 'g';
                    cek = true;
                    break;
                default:
                    balik += input.charAt(i);
                    break;
            }
        }
        if (!cek){
            System.out.println("Bukan Alay");
        } else {
            System.out.println(balik);
        }
    }
}


//SOAL PRIMA
import java.util.*;
public class ForPrima {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
         var input = in.nextInt();
         var found = 0;
         var n = in.nextInt() ;

         while (found < n){
             var count = 0 ;
             for (int i = 1; i <= input; i++) {
                 if (input % i == 0){
                     count++;
                 }
             }
             if (count == 2){
                 if(found < n - 1){
                     System.out.printf("%d ",input);
                 }else{
                      System.out.printf("%d",input);
                 }
                 found++;
             }
             input++;
         }
    }
}