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rclakmal

Active member
  • May 8, 2008
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    In a galaxy far far away
    /*
    * To change this template, choose Tools | Templates
    * and open the template in the editor.
    */
    package example1;

    import java.util.Scanner;

    class MatrixMultiplier {

    int p, q, s, r;
    static Scanner input = new Scanner(System.in);

    void getInput() {

    System.out.println("Enter Dimenison of the first Matrix(Etc : 2 2)");
    p = input.nextInt();
    q = input.nextInt();
    System.out.println("Enter Dimenison of the Second Matrix(Etc : 2 2)");
    r = input.nextInt();
    s = input.nextInt();
    if (p != q) {
    System.out.println("Matrixs Dimensions mismatch");
    getInput();



    }
    }

    int[][] getMatrixA(int p, int q) {

    int[][] A = new int[p][q];
    System.out.println("Enter Matrix A");
    for (int i = 0; i < p; i++) {
    for (int j = 0; j < q; j++) {
    A[j] = input.nextInt();
    }
    }
    return A;

    }

    int[][] getMatrixB(int r, int s) {

    int[][] B = new int[r];
    System.out.println("Enter Matrix B");
    for (int i = 0; i < r; i++) {
    for (int j = 0; j < s; j++) {
    B[j] = input.nextInt();
    }
    }
    return B;

    }

    int[][] multiply(int[][] A, int[][] B, int p, int q, int s) {
    int[][] C = new int[p];
    for (int i = 0; i < p; i++) {
    for (int j = 0; j < s; j++) {
    C[j] = 0;
    for (int k = 0; k < q; k++) {
    C[j] += A[k] * B[k][j];
    }
    }
    }
    return C;
    }

    void printResult(int[][] C) {
    System.out.println("Answer :");
    for (int i = 0; i < C.length; i++) {
    for (int j = 0; j < C.length; j++) {
    System.out.print(" " + C[j]);
    }
    System.out.println("");
    }

    }

    public static void main(String[] args) {
    MatrixMultiplier mm1 = new MatrixMultiplier();
    mm1.getInput();
    mm1.printResult(mm1.multiply(mm1.getMatrixA(mm1.p,mm1.q),mm1.getMatrixB(mm1.r, mm1.s),
    mm1.p,mm1.q,mm1.s));

    }
    }
     

    Djram

    Member
    Mar 23, 2007
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    PaNaDuRa : The City of HeAvEn
    එහෙනම් කියන්නම් මා සිතනා ලෙසට
    කිකිලිය තමයි ආවේ ලොව මුල් වරට
    කුකුලෙකු දෑකීමෙන් ඈය හට පහල සිත
    බිත්තරයකින් කෙලවර වුනි සබදකම
     

    sajithd

    Well-known member
  • Aug 3, 2007
    2,688
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    uNkOWn
    ඉතින් කොහෙද කියල දන්නවනෙ... අර අනර්කලිගෙ ඇඩ් එකකුත් තියෙන්නෙ
     

    1118lakmalkumara

    Well-known member
  • May 21, 2009
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    斯里蘭卡
    2007-GeigerCars-Ford-Mustang-GT-520-Front-Angle-2.jpg