//Jurnal1
import java.util.Scanner;

class Jurnal1GanjilGenap{
  void daftarGenap(int batas){
    int counter = 1;
    System.out.print("Daftar Nilai Genap : ");
    while(counter <= batas){
      if((counter % 2) == 0){
        System.out.print(counter + " ");
      }
      counter++;
    }
  }

  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    Jurnal1GanjilGenap j = new Jurnal1GanjilGenap();

		System.out.println("Nilai Genap");
		System.out.print("Masukkan Batas : ");
		int batas = sc.nextInt();
    if(batas <= 0){
      System.out.println("Inputan tidak valid!");
    } else{
      j.daftarGenap(batas);
    }
  }
}

//===========================================================================================================================
//Jurnal2
import java.util.Scanner;

class Jurnal2Prima{
  void bilanganPrima(int batas){
		int i, j;
    boolean prima;

    for (i = 1; i <= batas; i++) {
      prima = false;
      if (i == 2) {
        prima = true;
      } else {
        for (j = 2; j < i; j++) {
          if (i % j == 0) {
            prima = false;
            break;
          } else {
            prima = true;
          }
        }
      }

      if (prima) {
        System.out.print(i + " ");
      }
    }
    System.out.println("");
	}

  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    Jurnal2Prima p = new Jurnal2Prima();

		System.out.println("Bilangan Prima");
		System.out.print("Masukkan Batas : ");
		int batas = sc.nextInt();
    if(batas <= 0){
      System.out.println("Inputan tidak valid!");
    } else{
      p.bilanganPrima(batas);
    }
  }
}

//===========================================================================================================================
//Jurnal4
import java.util.Scanner;

class Jurnal4DeretGenap{
  void deretBilanganGenap(int batas){
    int sum = 0;
    int counter = 1;
    System.out.print("\nDeret Bilangan Genap : ");
    while(counter<=batas){
      if(counter % 2 == 0){
        sum = sum + a;
        if(counter == batas || counter+1 == batas){
          System.out.print(counter);
        } else{
          System.out.print(counter + " + ");
        }
      }
      counter++;
    }
    System.out.println(" = " + sum);
	}

  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    Jurnal4DeretGenap jg = new Jurnal4DeretGenap();

		System.out.println("Deret Bilangan Genap");
		System.out.print("Masukkan Batas : ");
		int batas = sc.nextInt();
    if(batas <= 0){
      System.out.println("Inputan tidak valid!");
    } else{
      jg.deretBilanganGenap(batas);
    }
  }
}

//===========================================================================================================================
//TA1
import java.util.Scanner;

class TA1BilanganPrima{
  void bilanganPrima(int batas){
    int counter = 1;
    int j;
    boolean prima;

    while (counter <= batas) {
      prima = false;
      if (counter == 2) {
        prima = true;
      } else {
        for (j = 2; j < counter; j++) {
          if (counter % j == 0) {
            prima = false;
            break;
          } else {
            prima = true;
          }
        }
      }

      if (prima) {
        System.out.print(counter + " ");
      }
      counter++;
    }
    System.out.println("");
	}

  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    TA1BilanganPrima p = new TA1BilanganPrima();

		System.out.println("Bilangan Prima");
		System.out.print("Masukkan Batas : ");
		int batas = sc.nextInt();
    if(batas <= 0){
      System.out.println("Inputan tidak valid!");
    } else{
      p.bilanganPrima(batas);
    }
  }
}

//===========================================================================================================================
//TA3
import java.util.Scanner;

class TA3DeretKuadrat{
  void deretKuadrat(int batas){
    System.out.println("Deret Bilangan Kuadrat : ");
    int kuadrat, hasil = 0;
    int counter = 1;
    while(counter <= batas) {
      kuadrat = counter * counter;
      hasil = hasil + kuadrat;
      System.out.print(kuadrat);
      if (counter < batas) {
        System.out.print(" + ");
      }
      counter++;
    }
    System.out.println(" = " + hasil);
  }

  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    TA3DeretKuadrat dk = new TA3DeretKuadrat();

		System.out.println("Deret Kuadrat");
		System.out.print("Masukkan Batas : ");
		int batas = sc.nextInt();
    if(batas <= 0){
      System.out.println("Inputan tidak valid!");
    } else{
      dk.deretKuadrat(batas);
    }
  }
}

//===========================================================================================================================
//TA4
import java.util.Scanner;

class TA4DeretDivergen{
  void deretDivergen(int batas){
    System.out.println("Deret Bilangan Divergen : ");
    int hasil = 0, divergen = 0;
    int counter = 1;
    String operator;
    while(counter<= batas) {
      if (counter % 2 == 0) {
        divergen = counter * -1;
        hasil = hasil + divergen;
        operator = " + ";
      } else {
        hasil = hasil + counter;
        operator = " - ";
      }

      if (counter < batas) {
        System.out.print(counter + operator);
      } else {
        System.out.println(counter + " = " + hasil);
      }
      counter++;
    }
  }

  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    TA4DeretDivergen dd = new TA4DeretDivergen();

		System.out.println("Deret Divergen");
		System.out.print("Masukkan Batas : ");
		int batas = sc.nextInt();
    if(batas <= 0){
      System.out.println("Inputan tidak valid!");
    } else{
      dd.deretDivergen(batas);
    }
  }
}

//===========================================================================================================================
//TA5
import java.util.Scanner;

class TA5Faktorial{
  void faktorial(int batas){
    System.out.println("Faktorial : ");
    int faktorial = 1;
    int counter = batas;
    System.out.print("!" + batas + " = ");
    while(counter >= 1) {
      System.out.print(counter);
      faktorial = faktorial * counter;
      if (counter > 1) {
        System.out.print(" x ");
      } else {
        System.out.println(" = " + faktorial);
      }
      counter--;
    }
  }

  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    TA5Faktorial f = new TA5Faktorial();
		System.out.println("Faktorial");
		System.out.print("Masukkan Batas : ");
		int batas = sc.nextInt();
    if(batas <= 0){
      System.out.println("Inputan tidak valid!");
    } else{
      f.faktorial(batas);
    }
  }
}

//===========================================================================================================================