contoh program java

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Tugas JAVA Nama : Eddy Purwoko NPM : 2008 435 00 845 Kelas III - V ( Sore ) ================================================================ Tabel Bulan dan Tabel Data yg berjumlah 1000 : INPUT : import java.util.Random; /** * * @author Nama : Eddy Purwoko * @author NPM : 2008 435 00 845 */ class p1{ public static void main(String[] args){ int x[][] = new int[8][12]; int jkolom[] = new int[12]; String bulan[]={"jan","Feb","mar","Apr","Mei","jun","Jul","Ags","Sep", "Okt","Nov","Des"}; String Umur[]={"s.d 18","19","20","21","22","23","24","25+"}; Random r1 = new Random( ); Random r2 = new Random( ); int bln, umur; for(int i=0; i<1000; i++){

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Page 1: Contoh Program Java

Tugas JAVA

Nama : Eddy Purwoko NPM : 2008 435 00 845 Kelas III - V ( Sore ) ================================================================

Tabel Bulan dan Tabel Data yg berjumlah 1000 :

INPUT :

import java.util.Random;

/**

*

* @author Nama : Eddy Purwoko

* @author NPM : 2008 435 00 845

*/

class p1{

public static void main(String[] args){

int x[][] = new int[8][12];

int jkolom[] = new int[12];

String bulan[]={"jan","Feb","mar","Apr","Mei","jun","Jul","Ags","Sep",

"Okt","Nov","Des"};

String Umur[]={"s.d 18","19","20","21","22","23","24","25+"};

Random r1 = new Random( );

Random r2 = new Random( );

int bln, umur;

for(int i=0; i<1000; i++){

Page 2: Contoh Program Java

bln = r1.nextInt(12);

umur = r2.nextInt(8);

x[umur][bln]+=1;

}

int jumlah=0;

System.out.print("\t");

for(int baris=0;baris<12;baris++)

System.out.print(bulan[baris]+"\t");

System.out.println("\n----------------------------------------------------------"+

"------------------------------------------");

for(int baris=0;baris<8;baris++){

System.out.print(Umur[baris]+"\t");

for(int kolom=0;kolom<12;kolom++) {

System.out.print(x[baris][kolom]+"\t");

jumlah+=x[baris][kolom];

jkolom[kolom]+=x[baris][kolom];

}

System.out.println();

}

System.out.print("\t");

for (int kolom=0; kolom<12; kolom++)

System.out.print(jkolom[kolom]+"\t");

System.out.println("\n\n ---> jumlah data : "+jumlah);

System.out.print("\t");

Page 3: Contoh Program Java

for (int kolom=0; kolom<12; kolom++)

System.out.print(jkolom[kolom]+"\t");

System.out.println("\n\n ---> jumlah data : "+jumlah);

int imin, imax, jmin, jmax,i,j;

int max = x[0][0]; jmax=jmin=imax=imin=0;

int min = x[0][0];

for (i=0;i<8;i++)

for (j=0;j<12;j++)

{if (x[i][j] > max)

{max = x [i][j];

imax=i;jmax=j;}

if (x[i][j] <min)

{min = x [i][j];imin=i;jmin=j;}

}

System.out.println("max = " + max+" i= "+imax+" j= "+jmax);

}

}

OUTPUT :

Page 4: Contoh Program Java

jan Feb mar Apr Mei jun Jul Ags Sep Okt Nov Des

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

s.d 18 7 12 11 10 15 6 12 8 10 10 11 12

19 13 9 10 10 9 15 19 12 11 8 18 13

20 5 14 13 6 10 12 11 14 15 11 19 6

21 5 8 7 8 11 9 12 10 9 16 14 9

22 9 8 8 8 13 11 7 7 10 10 14 10

23 10 2 5 13 14 13 11 5 11 10 6 10

24 11 8 11 10 10 10 11 9 9 12 8 17

25+ 13 9 7 15 12 8 10 14 6 8 12 10

73 70 72 80 94 84 93 79 81 85 102 87

---> jumlah data : 1000

73 70 72 80 94 84 93 79 81 85 102 87

---> jumlah data : 1000

max = 19 i= 1 j= 6

Nilai Rata-2

INPUT :

Page 5: Contoh Program Java

class r1

/**

*

* @author Nama : Eddy Purwoko

* @author NPM : 2008 435 00 845

*/

{

public static void main (String [] args )

{

int [] x = {11,12,13,10,9};

int jumlah = 0 ;

for ( int i = 0; i<x.length; i++)

jumlah = jumlah +x[i];

double rata2 = ( double ) jumlah /x.length;

for(int i=0; i<x.length; i++){

System.out.println(x[i]+" "+rata2+" = "+(x[i]-rata2));

System.out.printf("x %d rata2 %5.2f \n", x[i],rata2);}

}

}

OUTPUT :

11 11.0 = 0.0

x 11 rata2 11.00

12 11.0 = 1.0

Page 6: Contoh Program Java

x 12 rata2 11.00

13 11.0 = 2.0

x 13 rata2 11.00

10 11.0 = -1.0

x 10 rata2 11.00

9 11.0 = -2.0

x 9 rata2 11.00

Penentuan Tanggal

INPUT :

import java.util.Date;

/**

*

Page 7: Contoh Program Java

* @author Nama : Eddy Purwoko

* @author NPM : 2008 435 00 845

*/

class Coba1

{}

public class Tanggal

{public static void main(String []args)

{

Date waktuIni = new Date();

System.out.println("" +waktuIni);

}

}

OUTPUT :

Tanggal Hari Ini :

Sun Oct 18 21:29:33 ICT 2009

INPUT :

import java.util.Date;

/**

Page 8: Contoh Program Java

*

* @author Nama : Eddy Purwoko

* @author NPM : 2008 435 00 845

*/

public class HelloDate1{

public HelloDate1() {

}

public static void main(String[] args) {

System.out.println("Tanggal berapa Sekarang : " + new Date());

}

}

OUTPUT :

Tanggal berapa Sekarang : Sun Oct 18 21:28:26 ICT 2009

Page 9: Contoh Program Java

“”” Program Buat Dialog Message “””

Input : importjavax.swing.JOptionPane; /* Membuat dialog box */

public class Welcome {

public static void main(String args[])

{JOptionPane.showMessageDialog(null

Page 10: Contoh Program Java

, "Welcome\nto\nJava Programming!");

System.exit(0);}}

package ratarata; import java.io.*; public class RataRata { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub double jumlah = 0; double bilangan = 0; int n = 0; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String strbilangan = null;

Page 11: Contoh Program Java

System.out.print("Masukkan bilangan pertama : "); try { strbilangan = br.readLine(); } catch (IOException ioe) { System.out.println("Kesalahan IO, program berhenti"); System.exit(1); } // mengubah input menjadi double agar bisa diproses lebih lanjut bilangan = Double.parseDouble(strbilangan); while (bilangan != 0) { jumlah += bilangan; // sama dengan : jumlah = jumlah + bilangan n++; // sama dengan : n = n+1 // tanya user input System.out.print("Masukkan bilangan berikutnya (atau 0 untuk mengakhiri) : "); try { strbilangan = br.readLine(); } catch (IOException ioe) { System.out.println("Kesalahan IO, program berhenti"); System.exit(1); } // mengubah input menjadi double agar bisa diproses lebih lanjut bilangan = Double.parseDouble(strbilangan); } // hitung rata-rata double ratarata = jumlah/n; // cetak hasilnya ke layar if (n == 0) { System.out.println("Data kosong, rata-rata tidak bisa dihitung"); } else { System.out.println("Anda memasukkan " + n + " data"); System.out.println("Rata-rata bilangan yang dimasukkan adalah " + ratarata); } } }

Page 12: Contoh Program Java

import java.io.*; public class MainSuit { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub // cetak aturan main dan input dari user System.out.println("Permainan suit"); System.out.println("=============="); System.out.println("Masukkan salah satu dari 3 kemungkinan :"); System.out.println("J untuk Jempol");

Page 13: Contoh Program Java

System.out.println("T untuk Telunjuk"); System.out.println("K untuk Kelingking"); System.out.println(""); // baris kosong // variabel untuk mengambil input dari user BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String input = null; // Kita gunakan pernyataan while hingga user betul // memasukkan salah satu dari J, T, atau K boolean inputvalid = false; int suitKomputer = 0; int suitUser = 0; // selama input tidak valid, jalankan perulangan ini while (!inputvalid) { System.out.print("Masukkan suit Anda "); try { input = br.readLine(); } catch (IOException ioe) { System.out.println("Kesalahan IO, program berhenti"); System.exit(1); } if (input.length() > 0) { switch (input.charAt(0)) { case 'j' : case 'J' : suitUser = 0; inputvalid = true; break; case 't' : case 'T' : suitUser = 1; inputvalid = true; break; case 'k' : case 'K' : suitUser = 2; inputvalid = true; break; } } } suitKomputer = (int)(Math.random()*3);

Page 14: Contoh Program Java

if (suitKomputer == 3) { suitKomputer = 2; } switch (suitKomputer) { // jika komputer Jempol case 0: // cetak suit Komputer System.out.println("Suit komputer = Jempol"); switch (suitUser) { // jika user Jempol case 0: System.out.println("Seri"); break; // jika user Telunjuk case 1: System.out.println("Anda kalah"); break; // jika user Kelingking

case 2: System.out.println("Anda menang"); break; } break; // dari switch(suitKomputer) // jika komputer Telunjuk

case 1: // cetak suit Komputer System.out.println("Suit komputer = Telunjuk"); switch (suitUser) { // jika user Jempol case 0: System.out.println("Anda menang"); break; // jika user Telunjuk case 1: System.out.println("Seri"); break; // jika user Kelingking case 2: System.out.println("Anda kalah"); break; } Break; case 2:

Page 15: Contoh Program Java

System.out.println("Suit komputer = Kelingking"); switch (suitUser) { case 0: System.out.println("Anda kalah"); break; case 1: System.out.println("Anda menang"); break; case 2: System.out.println("Seri"); break; } break; } } }

Page 16: Contoh Program Java