Wibowo Setyabudi

joption pane

Rabu, 08 Juni 2011

Diposting oleh Wibowo Setyabudi

Contoh-contoh program menggunakan JoptionPane

Pertama
import javax.swing.*;
public class tugas_bintang1 {

public static void main(String[] args){
int x;
x=Integer.valueOf(JOptionPane.showInputDialog("Masukan banyak bintang :"));

for(int i=1;i<=x;i++){
for(int j=1;j<=x;j++){
if(j<=i)
System.out.print("*");
else
System.out.print(" ");

}
System.out.println();
}
}
}

Output keluarnya…
run:
*
**
***
****

Diposting oleh Wibowo Setyabudi

Sintaks menggunakan switch (pilih)

import java.util.Scanner;

public class SwitchPilihan {

public static void main(String[] args){

Scanner input=new Scanner(System.in);

garis();

System.out.println(" MENU PILIHAN ");

garis();

System.out.println("1. Menghitung nilai rata-rata ");

System.out.println("");

System.out.println("2. Menghitung bilangan kelipatan 4 ");

System.out.println("");

System.out.println("3. Keluar");

garis();

System.out.print("Anda pilih nomer :");

int pilih=input.nextInt();

switch (pilih){

case 1: {

System.out.println("Menghitung nilai rata-rata");

System.out.println("");

System.out.print("Masukan jumlah data =");

int n=input.nextInt(); int[] data=new int[10];

for(int i=1;i<=n;i++){

System.out.print("Data ke"+i +"=");

data[i]=input.nextInt();

}

int jum=0;

for(int i=1;i<=n;i++){

jum=jum +data[i];

}

System.out.println("Jumlah ="+jum);

int rata=jum/n;

System.out.println("Rata-rata ="+rata);

break;

}

case 2: {

System.out.println("Menghitung kelipatan 4");

System.out.println("");

System.out.print("Dari =");

int nilai_awal=input.nextInt();

System.out.print("Sampai =");

int nilai_akhir=input.nextInt();

for(int i=nilai_awal;i<=nilai_akhir;i++){

if(i%4==0){

System.out.println(i);

}

break;

}

default:System.exit(0);

}

static void garis(){

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

}

Output yang keluar akan seperti dibawah ini !!

run:

------------------------------------

MENU PILIHAN

------------------------------------

1. Menghitung nilai rata-rata

2. Menghitung bilangan kelipatan 4

3. Keluar

------------------------------------

Anda pilih nomer :2

Menghitung kelipatan 4

Dari =10

Sampai =20

ulangan

Diposting oleh Wibowo Setyabudi

public class Pemrogaman {

public static void main(String[] args){

String kal1="STMIK BANI SHALEH";

String kal2="Pemrogaman 2";

int i,j;

for(i=1;i<=3;i++){

System.out.println("");

System.out.println(kal1);

for(j=1;j<=3;j++){

System.out.println(kal2);

}

Outputnya seperti dibawah ini

run:

STMIK BANI SHALEH

Pemrogaman 2

STMIK BANI SHALEH

Pemrogaman 2

STMIK BANI SHALEH

Pemrogaman 2

htng

Diposting oleh Wibowo Setyabudi

public class Hitung {

public static void main(String[] args){

int[] data1={0,1,2,3,4,5};

int[] data2={0,1,2,3,4,5};

int i,j,jum;

System.out.println("+ 0 1 2 3 4 5");

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

for (i=0;i<=5;i++){

System.out.print(i);

for(j=0;j<=5;j++){

jum=data1[i]+data2[j];

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

}

System.out.println("");

}

Outputnya adalah

run:

+ 0 1 2 3 4 5

-----------------

0 0 1 2 3 4 5

1 1 2 3 4 5 6

2 2 3 4 5 6 7

3 3 4 5 6 7 8

4 4 5 6 7 8 9

5 5 6 7 8 9 10

menhitung nilai maha siswa

Diposting oleh Wibowo Setyabudi

menghitung nilai mhs

import java.util.Scanner;

public class Baru {

public static void main(String[] args){

Scanner input=new Scanner(System.in);

garis();

System.out.println(" MENU PILIHAN ");

garis();

System.out.println("1. Menhitung Nilai Mahasiswa");

System.out.println("");

System.out.println("2. Exit");

garis();

System.out.println("");

System.out.print("Anda pilih no :");

int pilih=input.nextInt();

switch(pilih){

case 1:{

int[] npm=new int[20];

String[] nama=new String[20];

String[] jur=new String[20];

String[] mk=new String[20];

int[] n_tgas=new int[20];

int[] n_uts=new int[20];

int[] n_uas=new int[20];

garis();

System.out.println(" MENGHITUNG NILAI MAHASISWA");

garis();

System.out.println("");

System.out.print("Masukan jumlah data ="); int n=input.nextInt();

for(int i=1;i<=n;i++){

System.out.println("Data ke"+i +":");

System.out.print("NPM :"); npm[i]=input.nextInt();

System.out.print("Nama :"); nama[i]=input.next();

System.out.print("Jurusan :"); jur[i]=input.next();

System.out.print("Mata Kuliah :"); mk[i]=input.next();

System.out.print("Nilai tugas :"); n_tgas[i]=input.nextInt();

System.out.print("Nilai UTS :"); n_uts[i]=input.nextInt();

System.out.print("Nilai UAS :"); n_uas[i]=input.nextInt();

double rata=(n_tgas[i]+n_uts[i]+n_uas[i])/3;

System.out.println("Nilai rata-rata ="+rata);

}

break;

}

default:System.exit(0);

}

static void garis(){

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

}

Outputnya

run:

==========================================

MENU PILIHAN

==========================================

1. Menhitung Nilai Mahasiswa

2. Exit

==========================================

Anda pilih no :1

==========================================

MENGHITUNG NILAI MAHASISWA

==========================================

Masukan jumlah data =2

Data ke1:

NPM :432

Nama :aku

Jurusan :ti

Mata Kuliah :pm2

Nilai tugas :80

Nilai UTS :70

Nilai UAS :87

Nilai rata-rata =79.0

Data ke2:

NPM :434

Nama :ina

Jurusan :ti

Mata Kuliah :pm1

Nilai tugas :70

Nilai UTS :80

Nilai UAS :70

Nilai rata-rata =73.0

Rabu, 30 Maret 2011

Diposting oleh Wibowo Setyabudi

Mencari Luas Segitiga (input dari keyboard)

package inputstring;

import java.util.Scanner;
public class inputkeyboard{
public static void main (String []args){
Scanner input = new Scanner (System.in);
System.out.print("masukan jari jari :");
double r = input.nextDouble();
double phi = 3.14;
double luas = (phi*r*r);
System.out.print("Luasnya : "+ luas);

}
}