Array

Program Array Satu Dimensi dalam Java

class Array1D {

      public static void main(String args[]){

            int[] tweety = new int[5];

            double[] mickey = new double[5];

            String[] goku = new String[5];

           

            for(int i=0; i<5;i++){

                  tweety[i] =i+3;

                  mickey[i] =i+2.5;

                  goku[i] ="String "+(i*2);

            }

           

            for(int i=0;i<5;i++){

                  System.out.println("tweety =  "+tweety[i]+", mickey = 

                  "+mickey[i]+", goku = "+goku[i]+"  --> index ke [ "+i+" ]");

            }

      }

Program Array Dua Dimensi bertipe String

class Array2D {

      public static void main(String args[]){

            //pendeklarasian array matrix dengan String

            String[ ][ ] arrNama = {

                                                   {"Ano  "," Lichin ","Iim   "},

                                                   {"Zhay "," Dicky   ","Wimbo "},

                                                  {"Tommy "," Pliqu  ","Jati  "} };

            //menampilkan matrix array

            for(int i=0;i<3;i++){

                        for(int j=0;j<3;j++){

                                    System.out.print(arrNama[i][j]);

                                    System.out.print("  ");

                        }

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

            }

            System.out.println("\n\n");

      }

}

Program untuk menginput dan menampilkan sebuah matriks dua dimensi

import java.io.*;

class Matriks {

     public static void main(String args[]) {

          int[][] M = new int[3][4];

          int i,j;

         

          //input matriks

          BufferedReader isi;

          System.out.println("Input Elemen Matriks M[3][4]");

          try {

              isi = new BufferedReader(new InputStreamReader(System.in));

              for(i=0; i<3; i++) {

                   for(j=0; j<4; j++) {

                        System.out.print("M["+i+"]["+j+"] = ");

                        M[i][j] = new Integer(isi.readLine()).intValue();

                   }

                        System.out.println("\n");

              }

          } catch (Exception e ){

              System.out.println("Input berupa integer aja");

          }

          //tampilkan isi matriks

          System.out.println("Isi Matriks M");

          for(i=0; i<3; i++) {

              for(j=0; j<4; j++) {

                   System.out.print(M[i][j]+"  ");

              }

              System.out.println("");

          }

     }

}

Program pengiriman sebuah array ke dalam fungsi (method) dalam Java

class KirimArray {

           

      //fungsi untuk menerima array string

      void kalimat(String nama[]){

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

                  System.out.println(nama[i]);

            }

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

      }

           

      //fungsi untuk menerima array unt

      void nilai(int[] nil){

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

                  System.out.println(nil[i]);

            }

            System.out.println("\n \n");

      }

           

      //fungsi main

      public static void main(String args[]) {

            KirimArray coba = new KirimArray();

            int[] data  ={1,2,3,4,5,6,7};

            String data1[] = {"Java","Is","Funny"};

           

            //penggunaan fungsi dan parameter

            coba.kalimat(data1);

            coba.nilai(data);

      }

}

Program menyalin isi suatu array ke dalam array lain

class ArrCopy {

      public static void main(String args[]) {

            int[] angka = {2,4,5,1,12,5};

            int[] nomor = new int[6];

            int i;

            //tampilkan array angka[]

            System.out.println("Array pertama");

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

                  System.out.print(angka[i]+" ");

            }

            System.out.println("\n\nArray yang kedua ");

            //copy array angka ke array nomor

            System.arraycopy(angka,0,nomor,0,6);

            //tampilkan array nomor[]

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

                        System.out.print(nomor[i]+" ");

            }

            System.out.println("\n");

      }

}

Program mengurutkan isi suatu Array

import java.util.*;

public class Dblsrt {

    public static void main(String[] args) {

        Double[] da = {new Double(3.1), new Double(99), new Double(-66)};

        print(da);         // Print unsorted array.

        Arrays.sort(da);   // Sort array

        print(da);         // Print sorted array.

    }

   

    private static void print(Object[] oa) {

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

            System.out.print(oa[i] + " ");

        }

        System.out.println("");

    }

}