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++){
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");
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 :
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
80
94
84
93
79
81
85
102
87
---> jumlah data : 1000 73
70
72
---> jumlah data : 1000 max = 19 i= 1 j= 6
Nilai Rata-2
INPUT :
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
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; /** *
* @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; /**
* * @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
“”” Program Buat Dialog Message “”” Input : importjavax.swing.JOptionPane; /* Membuat dialog box */ public class Welcome { public static void main(String args[]) {JOptionPane.showMessageDialog(null
, "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;
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; n++;
// sama dengan : jumlah = jumlah + bilangan // 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); } } }
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");
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; } } } suitKomputer = (int)(Math.random()*3);
break;
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:
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; } } }
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++){
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");
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 :
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
80
94
84
93
79
81
85
102
87
---> jumlah data : 1000 73
70
72
---> jumlah data : 1000 max = 19 i= 1 j= 6
Nilai Rata-2
INPUT :
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
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; /** *
* @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; /**
* * @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
“”” Program Buat Dialog Message “”” Input : importjavax.swing.JOptionPane; /* Membuat dialog box */ public class Welcome { public static void main(String args[]) {JOptionPane.showMessageDialog(null
, "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;
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; n++;
// sama dengan : jumlah = jumlah + bilangan // 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); } } }
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");
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; } } } suitKomputer = (int)(Math.random()*3);
break;
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:
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; } } }
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