Why won't it print everything?

Question

i can't seem to get the first part of my code to print. it just prints the last few iterations but it won't let me scroll up to see the beginning part of my results. does anyone know why this happens?
thanks in adavnce.
public class GEGS
      public static void main (String [] args)
           // Declare working variables
           double [][] a = {{12,     -2,     1,     0,     0,     0,     0,     0,     0,     0},
                                   {-2,     12,     -2,     1,     0,     0,     0,     0,     0,     0},
                                   {1,      -2,     12,     -2,     1,     0,     0,     0,     0,     0},
                                   {0,      1,      -2,     12,     -2,     1,     0,     0,     0,     0},
                                   {0,      0,      1,     -2,     12,     -2,     1,     0,     0,     0},
                                   {0,      0,      0,     1,     -2,     12,     -2,     1,     0,     0},
                                   {0,      0,      0,     0,     1,     -2,     12,     -2,     1,     0},
                                   {0,      0,      0,     0,     0,     1,     -2,     12,     -2,     1},
                                   {0,      0,      0,     0,     0,     0,     1,     -2,     12,     -2},
                                   {0,      0,      0,     0,     0,     0,     0,     1,     -2,     12}};
           double [] b = {13.97,
                               5.93,
                               -6.02,
                               8.32,
                                -23.75,
                                28.45,
                                -8.9,
                                -10.5,
                                10.34,
                                -38.74};
           int n=10;
           System.out.println("The following is the coefficient matrix A");
           for (int i=0; i<n; i++)
                for (int j=0; j<n; j++)
                     System.out.print((a[i][j]) + "\t");
                System.out.println();
           System.out.println("The following is the vector b");
           for (int i=0; i<10; i++)
                System.out.print((b) + "\t");
               System.out.println();
          System.out.println("\n");
          // Gaussian Elimination with Partial Pivoting (column)
          double [][] u = new double [10][10];
          double [][] l = new double [10][10];
          double [] g = new double [10];
          double [] x = new double [10];
          double [] xold = new double [10];
          double [] xnew = new double [10];
          // Matrix L with ones in diagonal
          for (int i=0; i<n; i++)
               for (int j=0; j<n; j++)
                    if (i==j)
                         l[i][j] = 1;
                    if (i<j)
                         l[i][j] = 0;
          // Copying matrix A to the "working" matrix u
          for (int i=0; i<n; i++)
               for (int j=0; j<n; j++)
                    u[i][j]=a[i][j];
          // Copying vector b to the "working" vector g
          for (int i=0; i<10; i++)
               g[i] = b[i];
          // NOW OFFICIALLY APPLYING PARTIAL PIVOTING!!!!!!!!!!!!
          for (int p=0; p<n; p++)
               int max = p;
               for (int i=p+1; i<n; i++)
                    if (Math.abs(u[i][p]) > Math.abs(u[max][p]))
                         max = i;
               double [] temp = u[p]; u[p] = u[max]; u[max] = temp;
               double t = g[p]; g[p] = g[max]; g[max] = t;
               for (int i=p+1; i<n; i++)
                    l[i][p] = u[i][p]/u[p][p];
                    g[i] -= l[i][p]*g[p];
                    for (int j=p; j<n; j++)
                         u[i][j] -= l[i][p] * u[p][j];
          System.out.println("\n");
          System.out.println("The following is the resultant L matrix!");
          for (int i=0; i<n; i++)
               for (int j=0; j<n; j++)
                    System.out.print(Math.round((l[i][j])*10000)/10000.0 + "\t");
               System.out.println();
          System.out.println("\n");
          System.out.println("The following is the resultant U matrix!");
          for (int i=0; i<n; i++)
               for (int j=0; j<n; j++)
                    System.out.print(Math.round((u[i][j])*10000)/10000.0 + "\t");
               System.out.println();
          // BACK SUBSTITUTION!!!!!!!!!
          for (int i=9; i>=0; i--)
               double sum = 0.0;
               for (int j=i+1; j<n; j++)
                    sum += u[i][j] * x[j];
               x[i] = ((g[i]) - sum)/u[i][i];
          System.out.println("\n");
          System.out.println("The following is the resultant X matrix," + "\n" + "ie. the sol'n to the system of linear equations!");
          for (int i=0; i<n; i++)
               System.out.print((x[i]) + "\t");
               System.out.println();
          // GAUSS-SEIDEL ITERATION METHOD!!!!!!!!!!!!!
          for (int i=0; i<n; i++)
               xold[i] = 0;
          System.out.println("\n");
          System.out.println("\n");
          System.out.println("The following is the resultant X matrix from Gauss Seidel," + "\n" + "ie. the sol'n to the system of linear equation!");
          System.out.println("\n");
          // ERROR ASSESSEMENT!!!!!!!!!!!!
          double e = .000001;
          double [] xerror = new double [10];
          double maximum = 0.0;
          System.out.println("The following is the new x's");
          for (int i=0; i<n; i++)
               double sum3 = 0.0;
               double sum4 = 0.0;
               for (int j=i+1; j<n; j++)
                    sum3 += a[i][j] * xold[j];
               for (int j=0; j<i; j++)
                    sum4 += a[i][j] * xnew[j];
               xnew[i] = ((b[i]) - sum4 - sum3)/a[i][i];
               System.out.print((xnew[i]) + "\t");
               System.out.println();
          System.out.println();
          System.out.println("The following is the error");
          for (int j=0; j<1; j++)
               maximum = 0.0;
               for (int i=0; i<n; i++)
                    xerror[i] = Math.abs(xnew[i] - xold[i]);
                    System.out.print((xerror[i]) + "\t");
                    System.out.println();
                    if (xerror[i]>maximum)
                         maximum = xerror[i];
               System.out.println();
          System.out.println("The following is the max error");
          System.out.println(Math.round(maximum*10000000)/10000000.0);
          System.out.println("\n");
          while (maximum>=e)
               System.out.println("\n");
               System.out.println("The following is the new x's");
               for (int i=0; i<n; i++)
                    double sum3 = 0.0;
                    double sum4 = 0.0;
                    xold[i] = xnew[i];
                    for (int j=i+1; j<n; j++)
                         sum3 += a[i][j] * xold[j];
                    for (int j=0; j<i-1; j++)
                         sum4 += a[i][j] * xnew[j];
                    xnew[i] = ((b[i]) - sum4 - sum3)/a[i][i];
                    System.out.print((xnew[i]) + "\t");
                    System.out.println();
               System.out.println("\n");
               System.out.println("The following is the error");
               for (int j=0; j<1; j++)
                    maximum = 0.0;
                    for (int i=0; i<n; i++)
                         xerror[i] = Math.abs(xnew[i] - xold[i]);
                         System.out.print((xerror[i]) + "\t");
                         System.out.println();
                         if (xerror[i]>maximum)
                              maximum = xerror[i];
                    System.out.println();
               System.out.println("The following is the max error");
               System.out.println(Math.round(maximum*10000000)/10000000.0);
     } //END OF MAIN METHOD
} //END OF CLASS

Answer 1

i'm not familiar with java so where would i put that
in my code.you wouldn't. it's how you run the code. whatever you typed at the prompt to run your code before, do that again, but add > log.txt to the end of it. after it's run, have a look in log.txt, to see what happened