Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
??
public class Main{
????????public static void main(String[] args) throws IOException {
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
????????????????String[] matSize = in.readLine().split(" ");
????????????????int n = Integer.parseInt(matSize[0]);
????????????????int m = Integer.parseInt(matSize[1]);
????????????????int[][] matrix = new int[n][m];
????????????????int[] vectorB = new int[m];
????????????????for (int i = 0; i < n; i += 1) {
????????????????????????String[] input = in.readLine().split(" ");
????????????????????????for (int j = 0; j < m; j += 1) {
????????????????????????????????matrix[i][j] = Integer.parseInt(input[j]);
????????????????????????}
????????????????}
????????????????for (int s = 0; s < m; s += 1) {
????????????????????????vectorB[s] = Integer.parseInt(in.readLine());
????????????????}
????????????????for (int t = 0; t < n; t += 1) {
????????????????????????int ans = 0;
????????????????????????for (int u = 0; u < m; u += 1) {
????????????????????????????????ans += matrix[t][u] * vectorB[u];
????????????????????????}
????????????????????????System.out.println(ans);
????????????????}
????????}
}

Compiler output:
Main.java:4: error: class, interface, enum, or record expected
??
^
Main.java:6: error: illegal start of type
????????public static void main(String[] args) throws IOException {
^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
 ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
   ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
     ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
      ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
       ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
         ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
          ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
           ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
            ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
             ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
              ^
Main.java:7: error: illegal start of expression
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
               ^
Main.java:7: error: : expected
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
                              ^
Main.java:7: error: : expected
????????????????BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
                                                                                        ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
 ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
  ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
   ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
    ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
     ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
      ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
       ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
        ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
         ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
          ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
           ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
            ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
             ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
              ^
Main.java:8: error: illegal start of expression
????????????????String[] matSize = in.readLine().split(" ");
               ^
Main.java:8: error: '.class' expected
????????????????String[] matSize = in.readLine().split(" ");
                         ^
Main.java:8: error: : expected
????????????????String[] matSize = in.readLine().split(" ");
                                                           ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
 ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
  ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
   ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
    ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
     ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
      ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
       ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
        ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
         ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
          ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
           ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
            ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
             ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
              ^
Main.java:9: error: illegal start of expression
????????????????int n = Integer.parseInt(matSize[0]);
               ^
Main.java:9: error: '.class' expected
????????????????int n = Integer.parseInt(matSize[0]);
                    ^
Main.java:9: error: : expected
????????????????int n = Integer.parseInt(matSize[0]);
                                                    ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
 ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
  ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
   ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
    ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
     ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
      ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
       ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
        ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
         ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
          ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
           ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
            ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
             ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
              ^
Main.java:10: error: illegal start of expression
????????????????int m = Integer.parseInt(matSize[1]);
               ^
Main.java:10: error: '.class' expected
????????????????int m = Integer.parseInt(matSize[1]);
                    ^
Main.java:10: error: : expected
????????????????int m = Integer.parseInt(matSize[1]);
                                                    ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
 ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
  ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
   ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
    ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
     ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
      ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
       ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
        ^
Main.java:11: error: illegal start of expression
????????????????int[][] matrix = new int[n][m];
         ^
Main.java:11: error: illegal start