Tugas Pertemuan ke 6

1. Buatlah program untukmenghitung 10 deretbilangangenap dengan hasilnya :

2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 = 110

importjava.util.Scanner;

public class bilangan_genap

{

public static void main(String[] args) {

@SuppressWarnings({ "resource", "unused" })

Scanner sclim = new Scanner(System.in);

System.out.println("DeretBilanganGenapantara 2 - 20 = ");

System.out.println("-----------------------------------------------");

int sum = 0, number = 1;

while(number<=20){

if((number!=1)&&(number%2==0))

sum= sum + number;

if((number!=1)&&(number%2==0))

System.out.println(number);

number++;

        }

System.out.println("-----");

System.out.printf("Jumlah = %d " , sum);

}

}

Output :

2. Buatlah program untukmenghitung 10 deretbilanganganjil dengan hasilnya :

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 = 100

importjava.util.Scanner;

public class bilangan_ganjil

{

public static void main(String[] args) {

@SuppressWarnings({ "resource", "unused" })

Scanner sclim = new Scanner(System.in);

System.out.println("DeretBilanganGanjilantara 1 - 19 = ");

System.out.println("-----------------------------------");

int sum = 0, number = 1;

while(number<=19){

if((number!=0)&&(number%2==1))

sum= sum + number;

if((number!=0)&&(number%2==1))

System.out.println(number);

number++;

        }

System.out.println("-----");

System.out.printf("Jumlah = %d " , sum);

}

}

Output:

3. Buatlah program untukmenampilkanderetfibonanci, sepertidibawahini :

1, 1, 2, 3, 5, 8, 13, 21

Output:

4. Buatlah program untukmenampilkanbilangan prima, sepertidibawahini :

2, 3, 5, 7, 11, 13, 17, 19

public class Bilangan_Prima

{

public static void main(String args[]){

int max = 19;

booleanisPrima = false;

for(inti=2; i<=max; i++){

isPrima = true;

for(int j=2; j<i; j++){

if(i % j == 0){

isPrima = false;

break;

 }

 }

if(isPrima){

System.out.print(i +" ");

 }

 }

 }

}

Output: