karyaindpras

Jumat, 29 Maret 2013

perkalian matrik di java

perkalian matrik di java - Sobat indpras berikut codingnya

package bel_array;
/*
 * @author indpras
 */
import java.util.Scanner;
public class perkalian_matrik {
    void Show()
    {
        Scanner masuk = new Scanner (System.in);
        System.out.println ("Masukan banyak baris dan kolom matriks 1");
        System.out.print ("masukkan baris : ");
        int baris1 = masuk.nextInt ();
        System.out.print ("masukkan kolom : ");
        int kolom1 = masuk.nextInt ();
        System.out.println ();

System.out.println ("Masukan banyak baris dan kolom matriks 2");
        System.out.print ("banyak baris : ");
        int baris2 = masuk.nextInt ();
        System.out.print ("banyak kolom : ");
        int kolom2 = masuk.nextInt ();

if(kolom1 == baris2)
        {

int Matriks1[][]=new int[baris1][kolom1];
        int Matriks2[][]=new int[baris2][kolom2];
        int hasil[][]=new int[baris1][kolom2];
        System.out.println("Matrik 1");
        for (int i=0;i<baris1;i++)
        {
            for (int j=0;j<kolom1;j++)
            {
                System.out.print("Masukan nilai matriks 1 :");
                //System.out.print("Masukkan nilai baris ke"+i+" kolom ke-"+j+" = ");
                Matriks1[i][j]=masuk.nextInt();
            }
        }

System.out.println();
        
        System.out.println("Matriks 2");
        for (int i=0;i<baris2;i++)
        {
            for (int j=0;j<kolom2;j++)
            {
                System.out.print("Masukan nilai matriks 2 :");
                Matriks2[i][j]=masuk.nextInt();
            }
        }
        System.out.println();
        System.out.println ("Matrik 1");
        for (int i=0;i<baris1;i++)
        {
            for (int j=0;j<kolom1;j++)
            {
                if (j==0)
                {
                    System.out.print("| ");
                }
                System.out.print(Matriks1[i][j]+" ");
                if (j==kolom1-1)
                {
                    System.out.print("|");
                }
            }
            System.out.println();
        }
        System.out.println();
        System.out.println ("Matrik 2");
        for (int i=0;i<baris2;i++)
        {
            for (int j=0;j<kolom2;j++)
            {
                if (j==0)
                {
                    System.out.print("| ");
                }
                System.out.print(Matriks2[i][j]+" ");
                if (j==kolom2-1)
                {
                    System.out.print("|");
                }
            }
            System.out.println();
        }

int m=0;
        for (int i=0;i<baris1;i++)
        {
            for (int j=0;j<kolom2;j++)
            {
                m=0;
                for (int k=0;k<baris2;k++)
                {
                    m+=Matriks1[i][k]*Matriks2[k][j];
                }
                hasil[i][j]=m;
            }
        }

System.out.println();
        System.out.println("Hasil");
        for (int i=0;i<baris1;i++)
        {
            for (int j=0;j<kolom2;j++)
            {
                if (j==0)
                {
                    System.out.print("| ");
                }
                System.out.print(hasil[i][j]+" ");
                if (j==kolom2-1)
                {
                    System.out.print("|");
                }
            }
            System.out.println();
        }
        }
        else
        {
            System.out.println("Matrik tak bisa dikalikan");
        }
    }

public static void main(String[] args) {
        perkalian_matrik matrik=new perkalian_matrik();
        matrik.Show();
    }
}

outputnya