OpMatrixJava

import java.util.Scanner;
import java.math.*;
class mymatrikop{
        public static void main (String args[]){

        Scanner scan1 = new Scanner(System.in);
        Scanner scan2 = new Scanner(System.in);

        int ordo;
        System.out.print("Masukan Ordo Matrik: "); ordo = scan1.nextInt();

        int arrayA[][] = new int [ordo][ordo];
        int arrayB[][] = new int [ordo][ordo];
        int hasil[][] = new int [ordo][ordo];

        //Input Nilai MatrikA
        System.out.println("\nMasukan Matriks A: ");
            for(int i=0; i<arrayA.length;i++){
                for(int j=0; j<arrayA[i].length;j++){
                    System.out.print("Masukan nilai ke ["+(i+1)+"]["+(j+1)+"]=");
                    arrayA[i][j] = (int)(Math.random()*99);
                    }
            }

        //Input Nilai Matrik B
        System.out.println("\nMasukan Matrik B: ");
        for(int i=0; i<arrayA.length;i++){
            for(int j=0;j<arrayA[i].length;j++){
                System.out.print("Masukan nilai ke ["+(i+1)+"]["+(j+1)+"]=");
                arrayB[i][j] = (int)(Math.random()*99);
                }
        }

            //Tampil Matrik A
            System.out.println("\n\nMatrik A");
            for(int k=0; k<arrayA.length;k++){
                for(int l=0; l<arrayA[k].length;l++){
                System.out.print(arrayA[k][l]+" ");
                }
                System.out.println();
            }

            //Tampil Matrik B
            System.out.println("\n\nMatrik B");
            for(int k=0; k<arrayB.length;k++){
                for(int l=0; l<arrayB[k].length;l++){
                    System.out.print(arrayB[k][l]+" ");
                    }
                    System.out.println();
            }

    //Pilihan Menu
    System.out.println("\n1.Perkalian");
    System.out.println("2.Penjumlahan");
    System.out.println("3.Pengurangan");
    System.out.print("Masukan Pilihan Operasi[1/2/3]:");
    int pilih = scan2.nextInt();

    switch(pilih){

        case 1:
        //Proses Perkalian Matrik
        System.out.println("Hasil Perkalian Matrik :");
        for(int i=0;i<hasil.length;i++){
            for(int j=0; j<hasil[i].length;j++){
                for(int k=0; k<hasil[j].length;k++){
                    hasil[i][j]+=arrayA[i][k]*arrayB[k][j];
                    }
                }
            }
            //Tampilkan
            for(int k=0;k<hasil.length;k++){
                for(int l=0; l<hasil[k].length;l++){
                    System.out.print(hasil[k][l]+" ");
                    }
                    System.out.println();
            }break;

        case 2:
        //Proses Penjumlahan
        System.out.println("Hasil Penjumlahan Matrik :");
        for(int i=0;i<hasil.length;i++){
            for(int j=0;j<hasil[i].length;j++){
                hasil[i][j]=arrayA[i][j]+arrayB[i][j];
                }
        }
        //Tampilkan
        for(int k=0;k<hasil.length;k++){
            for(int l=0;l<hasil[k].length;l++){
                System.out.print(hasil[k][l]+" ");
            }
            System.out.println();
        }break;

        case 3:
        //Proses Pengurangan
        for(int k=0; k<hasil.length;k++){
            for(int l=0; l<hasil[k].length;l++){
                System.out.print(hasil[k][l]+" ");
            }
            System.out.println();
        }break;

        default: System.out.print("Salah input pilihan!"); break;
    }

    //Proses Searching
    System.out.print("Masukan Nilai yang akan dicari: ");
    int c = scan1.nextInt();
    int m = 0;
    int n = 0;
    boolean x = false;
    for(m=0;m<hasil.length;m++){
        for(n=0;n<hasil[m].length;n++){
        if(hasil[m][n]==c){
            x=true;
            break;
            }
        }
            if(x==true){
            break;
        }
    }
            if(x==true){
            System.out.print("Nilai "+c+" ada di index ["+(m+1)+"]["+(n+1)+"]\n");
    }else{
            System.out.print("Nilai "+c+" tidak ada\n");
    }

 }
}