Program [ +,-,*,/ ] Matriks

import java.util.*;

    public class matriksplus{

        public static void main (String[]sri){

            Scanner nilai=new Scanner (System.in);

            int i;

            int j;

            int [][] matriksA = new int [4][4];

            int [][] matriksB = new int [4][4];

            int [][] jumlahmatriks = new int [4][4];

            int [][] kurangmatriks = new int [4][4];

            int [][] kalimatriks = new int [4][4];

            int [][] bagimatriks = new int [4][4];

                for(i=1;i<4;i++){

                    for(j=1;j<4;j++){

                        System.out.print("matriks A "+i+"."+j+"=");

                        matriksA[i][j]=nilai.nextInt();

                    }

                }

                System.out.println();

                 for(i=1;i<4;i++){

                    for(j=1;j<4;j++){

                        System.out.print("matriks B "+i+"."+j+"=");

                        matriksB[i][j]=nilai.nextInt();

                    }

                }

                 for(i=1;i<4;i++){

                    for(j=1;j<4;j++){

                        jumlahmatriks[i][j] = matriksA[i][j] + matriksB[i][j];

                        kurangmatriks[i][j] = matriksA[i][j] - matriksB[i][j];

                        kalimatriks[i][j] = matriksA[i][j] - matriksB[i][j];

                        bagimatriks[i][j] = matriksA[i][j] - matriksB[i][j];

                    }

                }

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

                for(i=1;i<4;i++) {

                    for(j=1;j<4;j++) {

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

                        System.out.println(); }

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

                    for(i=1;i<4;i++) {

                    for(j=1;j<4;j++) {

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

                         System.out.println(); }

                System.out.println("\nMatriksA + MatriksB\n");

                for(i=1;i<4;i++){

                    for(j=1;j<4;j++){

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

            }

            System.out.println();

        }

System.out.println("\nMatriksA - MatriksB\n");

        for(i=1;i<4;i++){

            for(j=1;j<4;j++){

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

            }

            System.out.println();

        }

System.out.println("\nMatriksA * MatriksB\n");

        for(i=1;i<4;i++){

            for(j=1;j<4;j++){

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

            }

            System.out.println();

        }

        System.out.println("\nMatriksA / MatriksB\n");

            for(i=1;i<4;i++){

            for(j=1;j<4;j++){

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

            System.out.println();

        }

    }

}