PracticeFinal.java

public class PracticeFinal
{
  public static void printMultiplicationTable(int num)
  {
    // Print header
    System.out.printf("%2s, "");
    for (int i = 1; i <= num; i++)
    {
      System.out.printf("%2d", i);
    }
    System.out.println();
    
    // Print inner table
    for (int row = 1; row <= num; row++)
    {
      System.out.printf("%2d", row);
      for (int col = 1; col <= num; col++)
      {
        System.out.printf("%2d", row * col);
      }
      System.out.println();
    }
  }
}

Problem5A.java

import java.util.Scanner;

public class Problem5A
{
  public static int[] getIntegers()
  {
    Scanner keyboard = new Scanner(System.in);
    final int TOTAL_INTEGERS = 3;
    int[] userIntegers = new int[TOTAL_INTEGERS];
    for (int i = 0; i < userIntegers.length; i++)
    {
      System.out.print("Enter an integer: ");
      userIntegers[i] = keyboard.nextInt();
    }
    return userIntegers;
  }

  public static void main(String[] args)
  {
    getIntegers();
  }
}

SelectionSort.java

public class SelectionSort
{
  public static void main(String[] args)
  {
    Random rand = new Random();
    final int SIZE = 6;
    int[] array = new int[SIZE];
    for (int i = 0; i < array.length; i++)
    {
      array[i] = random.nextInt(200);
    }
    selectionSort(array);
  }
  
  public static int[] selectionSort(int[] a)
  {
    int temp, min;
    for (int i = 0; i < a.length;i++)
    {
      min = i;
      for (int j = 0; j < a.length; j++)
      {
        if (a[j] < a[i])
          min = j;
      }
      
      if (min !+ i)
      {
        temp = arr[i];
        arr[i] = arr[min];
        arr[min] = temp;
      }
    }
    return a;
  }
}