Source code :
package javaapplication2;
import java.util.Scanner;
public class fahrenheitcelcius {
public static void main(String[] args) {
double f, celcius;
System.out.println(“Konversi suhu F to C by helmykediri.com”);
Scanner scan= new Scanner(System.in);
System.out.println(“Masukkan fahrenheit=”);
f= scan.nextInt();
celcius= (f-32)*5/9;
System.out.println(“Hasil conversi celcius=”+celcius);
}
}
Hasil :
Source code :
public class sisimiring {
public static void main(String[] args) {
double alas, tinggi, sisimiring;
System.out.println(“Hitung sisi miring segitiga helmykediri.com”);
alas=12;
tinggi=12;
System.out.println(“Diket alas=”+alas);
System.out.println(“Diket tinggi=”+tinggi);
sisimiring= Math.sqrt((alas*alas)+(tinggi*tinggi));
System.out.println(“Hasil sisi miring=”+sisimiring);
}
}
Hasil program :
Source code :
package javaapplication2;
public class menukarvariable {
public static void main(String[] args) {
int a=12, b=2, c=0;
System.out.println(“Menukar variabel helmykediri.com”);
System.out.println(“Angka sebelumnya:”);
System.out.println(“A=”+a);
System.out.println(“B=”+b);
a= a^b;
b= a^b;
c= b^c;
a= a^b;
System.out.println(“Angka sesesudah:”);
System.out.println(“A=”+a);
System.out.println(“B=”+b);
}}
Hasil Program :
Source code :
package javaapplication2;
import java.util.Scanner;
public class bilterbesar {
public static void main(String[] args) {
int x, y;
Scanner scan= new Scanner(System.in);
System.out.println(“Masukkan x=”);
x= scan.nextInt();
System.out.println(“Masukkan y=”);
y= scan.nextInt();
if (x<y){
System.out.println(“x=”+x+”kurang dari y=”+y);
}
else if (y<x){
System.out.println(“y=”+y+”kurang dari x=”+x);
}
}
}
Hasil program :
Source code :
package javaapplication2;
import java.util.Scanner;
public class diskonswalayan {
public static void main(String[] args) {
int pembelian;
double disc;
System.out.println(“Menghitung diskon helmykediri.com”);
Scanner scan = new Scanner(System.in);
System.out.println(“Masukkan jumlah pembelian”);
pembelian = scan.nextInt();
if (pembelian>=100000){
disc=pembelian*0.1;
System.out.println(“Discount anda=”+disc);
System.out.println(“Total bayar=”+(pembelian-disc));
}
else if (pembelian<100000){
System.out.println(“Discount anda=0”);
System.out.println(“Total bayar=”+(pembelian));
}
}
}
Hasil program :
Source code:
package javaapplication2;
public class pengulangan {
public static void main(String[] args) {
int x=1;
while (x<5){
System.out.println(“Selamat Belajar”);
x++;
}
}}
Hasil program :
7. Buat program menggunakan perulangan untuk menampilkan hasil berikut
1 1
2 4
3 9
4 16
5 25
6 36
7 49
8 64
9 81
10 100
Source code :
package javaapplication2;
public class ulangbilangan {
public static void main(String[] args) {
int x;
System.out.println(“Perulangan Helmykediri.com”);
for (x=1;x<11;x++){
System.out.println(x+”.”+x*x);
}
}}
Hasil program :
Source code :
package javaapplication2;
import java.util.Scanner;
public class ulangbilangan2 {
public static void main(String[] args) {
int x, input;
Scanner scan= new Scanner(System.in);
System.out.println(“Perulang by helmykediri”);
System.out.println(“Masukkan inputan=”);
input = scan.nextInt();
if (input==5){
int i=1;
while (i<=10)
{
if (i%5!=0)
{
System.out.println(i);
}
i+=1;
}
}
else if (input!=5){
for (input=0;input<10;input++){
System.out.println(input+1);
}
}
}
}
Hasil input bil sama dengan 5 :
Kode program :
package javaapplication3;
public class segitigaluas {
public static void main(String[] args) {
double a=12, b=13, c=14, s, hasil;
s=(a+b+c)/2;
System.out.println(“Hitung luas sisi segitiga by helmykediri.com”);
hasil= Math.sqrt(s*(s-a)*(s-b)*(s-c));
System.out.println(“Diket a=”+a);
System.out.println(“b=”+b);
System.out.println(“c=”+c);
System.out.println(“Hasil=”+hasil);
}
}
Hasil program :
Source code
package javaapplication3;
import java.util.Scanner;
public class tigabil {
public static void main(String[] args) {
int x,y,z,max;
Scanner scan= new Scanner(System.in);
System.out.println(“Menentukan bilangan terbesar by helmykediri”);
System.out.println(“Masukkan angka x=”);
x=scan.nextInt();
System.out.println(“Masukkan angka y=”);
y=scan.nextInt();
System.out.println(“Masukkan angka z=”);
z=scan.nextInt();
if (x>y&&x>z){
max=x;
System.out.println(“Maka angka terbesar adalah=”+max);
}
else if (y>z){
max=y;
System.out.println(“Maka angka terbesar adalah=”+max);
}
else {
max=z;
System.out.println(“Maka angka terbesar adalah=”+max);
}
}}
11. Buat program java untuk menghitung N suku pada deret berikut ini
a) S=1+3+5+7+9+11+….
Source code deret kelipatan 2
package javaapplication3;
public class dereta {
public static void main(String[] args) {
int a;
System.out.println(“Deret kelipatan 2 by helmykediri.com”);
System.out.print(“S=”);
for (a=1;a<=13;a+=2){
System.out.print(a+”+”);
}
}}
Hasilnya
b) S= 0,1+0,02+0,003+0,0004+…
Source code deret N=10 kuadrat
package javaapplication3;
public class empatc {
public static void main(String[] args) {
double x = 1, un;
System.out.println(“Deret kelipatan N kuadrat by helmykediri.com”);
for (double i = 1; i < 10; i++)
{
x/= 10;
System.out.print(i*x+”+”);
}
}
}
Hasilnya
c) S=2+5+10+17+26+37+50+…
Source code deret rumus input kuadrat + 1
package javaapplication3;
public class deretb {
public static void main(String[] args) {
int un,a=2;
System.out.println(“Deret kuadrat+1 by helmykediri”);
for (a=0;a<10;a++){
un=(a*a)+1;
System.out.print(un+”+”);
}
}
}
Hasilnya
d) S= 1-2+3-4+5-6+7-….
Saus
public class deretnol {
public static void main(String[] args) {
String a=”-“, b=”+”;
int i,u;
System.out.println(“By Helmyberdiri”);
for (i=1;i<12;i+=2){
u=i+1;
System.out.print(i+a+u+b);
}
}
}
Hasilnya
