//Christopher Miller AP CS Mod 4/5
public class Matrix {
   private int [][] mat;

   public Matrix( int numRows, int numCols ) {
      mat = new int[ numRows ][ numCols ];
   }
   public void setValues( int[][] values ) {
      for(int row = 0; row< mat.length; row++){
         for(int col = 0; col<mat[row].length; col++){
            mat[row][col] = values[row][col];
         }
      }
   }
   public Matrix add( Matrix mx ){
      Matrix temp = new Matrix( mat.length, mat[0].length );
      for(int row = 0; row< mat.length; row++){
         for(int col = 0; col<mat[row].length; col++){
            temp.mat[row][col] = mx.mat[row][col]+mat[row][col];
         }
      }
      return temp;
   }
   public Matrix scalar( int n ){
      Matrix temp = new Matrix( mat.length, mat[0].length );
      for(int row = 0; row< mat.length; row++){
         for(int col = 0; col<mat[row].length; col++){
            temp.mat[row][col] = n*mat[row][col];
         }
      }
      return temp;
   }
   public String toString() {
      String n = "";
      for(int row = 0; row< mat.length; row++){
         for(int col = 0; col<mat[row].length; col++){
            n += mat[row][col]+"\t" ;
         }
       n+="\n";
      }
      return n;

}
}