public class OneToFourMultiplicationTable {

   public static void main(String[] a) {

      System.out.println("\t1\t2\t3\t4");
      System.out.println("---------------------------------");

      for (int i = 1; i <= 4; i++) {
          System.out.print(i + ".\t");
          for (int j = 1; j <= 4; j ++) {
              System.out.print(i*j+"\t");
          }
          System.out.println();
       }
    }
}

import java.io.*;

public class MultiplicationTable {

   private static BufferedReader  stdIn =
		new  BufferedReader(new  InputStreamReader(System.in));

   public static void main(String[] a) throws IOException {

      int row, column;

      System.out.println("Enter row number:");
      row = Integer.parseInt(stdIn.readLine());

      System.out.println("Enter column number:");
      column = Integer.parseInt(stdIn.readLine());

      for (int i = 1; i <= column; i++)
          System.out.print("\t" + i);

      System.out.println();

      for (int i = 1; i <= column; i++)
          System.out.print("--------");

      System.out.println();

      for (int i = 1; i <= row; i++) {
          System.out.print(i + ".\t");
          for (int j = 1; j <= column; j ++) {
              System.out.print(i*j+"\t");
          }
          System.out.println();
       }
    }
}

import java.text.DecimalFormat;

public class TableUsingDecimalFormat {

   public static void main(String[] a) {

      DecimalFormat decimalformat = new DecimalFormat("0.0000");

      System.out.println("\t1\t2\t3\t4");
      System.out.println("--------------------------------------");

      for (int i = 1; i <= 4; i++) {
          System.out.print(i + ".\t");
          for (int j = 1; j <= 4; j ++) {
              System.out.print(decimalformat.format(Math.random())+"\t");

          }
          System.out.println();
       }
    }
}

public class TableUsingPrintfToFormat {

   public static void main(String[] a) {

      System.out.println("\t\t1\t\t2\t\t3\t\t4");
      System.out.println("--------------------------------------------------------------------");

      for (int i = 1; i <= 4; i++) {
          System.out.printf("%5d.\t",i);
          for (int j = 1; j <= 4; j ++) {
              System.out.printf("%10.2f\t",i*j*100*Math.random());

          }
          System.out.println();
       }
    }
}