Program Invers Matriks Java Netbeans

package inversmatriks;

import java.io.*;

import javax.swing.*;

public class Main {

  public static void main(String[] args) {

   {

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

                System.out.println("<<<<<>>>>>>>");

                System.out.println("Input Elemen-Elemen Matriks.");

                int matrik[][]=new int[3][3];

                for (int i=0;i<3;i++)

                {

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

                                {

                                System.out.print("Input Elemen Matriks ke ["+(i+1)+","+(j+1)+"]: ");

                                matrik[i][j]=Integer.parseInt(input.readLine());

                                }

                }

                System.out.println();

                System.out.println("Matriks 3x3 : ");

                for (int i=0;i<3;i++)

                {

                                System.out.print("| ");

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

                                {

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

                                }

                                System.out.println("|");

                }

                //adjoin matriks

                int temp[][]=new int[3][3];

                temp[0][0]=matrik[1][1]* matrik[2][2]-matrik[2][1]*matrik [1][2];

                temp[0][1]=matrik[1][0]* matrik[2][2]-matrik[2][0]*matrik [1][2];

                temp[0][2]=matrik[1][0]* matrik[2][1]-matrik[1][1]*matrik [2][0];

                temp[1][0]=matrik[0][1]* matrik[2][2]-matrik[0][2]*matrik [2][1];

                temp[1][1]=matrik[0][0]* matrik[2][2]-matrik[0][2]*matrik [2][0];

                temp[1][2]=matrik[0][0]* matrik[2][1]-matrik[0][1]*matrik [2][0];

                temp[2][0]=matrik[1][1]* matrik[2][2]-matrik[1][2]*matrik [2][1];

                temp[2][1]=matrik[0][0]* matrik[1][2]-matrik[0][2]*matrik [1][0];

                temp[2][2]=matrik[0][0]* matrik[1][1]-matrik[0][1]*matrik [1][0];

                System.out.println ();

                System.out.println ("Adjoin Matriks : ");

                for (int i=0;i<3;i++)

                {

                                System.out.print("| ");

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

                                {

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

                                }

                                System.out.println("|");

}

                System.out.println();

                int dtr=((matrik[0][0]*matrik[1][1]*matrik[2][2] + (matrik[0][1]*matrik[1][2] * matrik[2][0])+

                                (matrik[0][2]*matrik[1][0]*matrik[2][1]))-(matrik[0][1]*matrik[1][0]*matrik[2][2] +

                                (matrik[0][0] * matrik[1][2] * matrik[2][1])+(matrik[0][2]*matrik[1][1]*matrik[2][0])));

                System.out.println("Determinan Matriks= "+dtr);

                System.out.println();

                if (dtr!=0)

                {

                temp[0][0]=temp[0][0]/dtr;

                temp[0][1]=temp[0][1]/dtr;

                temp[0][2]=temp[0][2]/dtr;

                temp[1][0]=temp[1][0]/dtr;

                temp[1][1]=temp[1][1]/dtr;

                temp[1][2]=temp[1][2]/dtr;

                temp[2][0]=temp[2][0]/dtr;

                temp[2][1]=temp[2][1]/dtr;

                temp[2][2]=temp[2][2]/dtr;

                System.out.println ();

                System.out.println ("Invers Matriks : ");

                for (int i=0;i<3;i++)

                {

                                System.out.print("| ");

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

                                {

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

                                }

                                System.out.println("|");

                }

                }

                else {

                                                System.out.println("Tidak ada hasil inversnya, karena matriks Singular");

                }

                }

}

}