::::::::::::::
ASCII.java
::::::::::::::
class ASCII {
  public static void main(String[] args) {
    ConsoleReader console = new ConsoleReader(System.in); 
    System.out.print("Start of range: "); 
    int n = console.readInt(); 
    System.out.print("End of range of interest: "); 
    int m = console.readInt(); 
    while (n < m) {
      System.out.println("The character with code " + n + " is " + (char)n); 
      n = n + 1; 
    } 
  } 
}
::::::::::::::
Acres.java
::::::::::::::
class Acres {
    public static void main(String[] args) {
	ConsoleReader c = new ConsoleReader(System.in); 
	System.out.print("What's the area (in acres): "); 
	double a = c.readDouble(); 
	System.out.println(a + " acres amount to " + 43560 * a + " square feet"); 
    }
}
::::::::::::::
Averages.java
::::::::::::::
class Averages {
    public static void main(String[] args) {
	ConsoleReader c = new ConsoleReader(System.in); 
	String line;
	double num;
	double sum = 0, count = 0;  
	System.out.print("Enter number: "); 
	line = c.readLine(); 
	while (! line.equals("done")) {
	    sum = sum + Double.parseDouble(line); 
	    count = count + 1; 
	    System.out.println((int)count + ". Average is: " + sum / count); 
	    System.out.print("Enter number: ");
	    line = c.readLine();
	}
    }
}
::::::::::::::
Calculations.java
::::::::::::::
class Calculations {
    public static void main(String[] args) {
	ConsoleReader console = new ConsoleReader(System.in); 
	System.out.print("Type the number: "); 
	double n = console.readDouble(); 
	double a = 1, b = n; 
        double sum = 0; 
	while (a <= n) {
	    sum = sum + a / b; 
	    a = a + 1; 
	    b = b - 1; 
	}
	System.out.println("The sum is: " + sum); 
    }
}
::::::::::::::
Calendar.java
::::::::::::::
class Calendar {
    public static void main(String[] args) {
	ConsoleReader console = new ConsoleReader(System.in); 
	System.out.print("Type the starting date (dd/mm): "); 
        String date = console.readLine(); 
        int mon = Integer.parseInt(date.substring(0, 2)); 
        int day = Integer.parseInt(date.substring(3, 5)); 
        System.out.print("Type the number of days: "); 
        int days = console.readInt(); 
        while (days > 0) {
	    day += 1; 
	    if (mon ==  1 && day == 32 || 
                mon ==  2 && day == 29 || 
                mon ==  3 && day == 32 || 
                mon ==  4 && day == 31 || 
                mon ==  5 && day == 32 || 
                mon ==  6 && day == 31 || 
                mon ==  7 && day == 32 || 
                mon ==  8 && day == 32 || 
                mon ==  9 && day == 31 || 
                mon == 10 && day == 32 || 
                mon == 11 && day == 31 || 
                mon == 12 && day == 32) {
		day = 1; 
                mon = mon + 1; 
                if (mon == 13) {
		    mon = 1; 
                } 
            } else {

            }  
            String month = "00" + mon; 
	    String day__ = "00" + day; 
            month = month.substring(month.length() - 2); 
	    day__ = day__.substring(day__.length() - 2); 
	    System.out.println(month + "/" + day__); 
	    days -= 1; 
	}
    }
}
::::::::::::::
Commas.java
::::::::::::::
class Commas {
  public static void main(String[] args) {
    System.out.print("Type the number: "); 
    ConsoleReader console = new ConsoleReader(System.in); 
    String line = console.readLine(); 
    int i = line.length()-1; 
    String result = ""; 
    while (i >= 0) {
      int j = line.length() - 1 - i; 
      if (j > 0 && j % 3 == 0) {
        result = line.charAt(i) + "," + result; 
      } else {
        result = line.charAt(i) + result; 
      } 
      i = i - 1; 
    } 
    System.out.println("The converted string is: " + result); 
  } 
} 
::::::::::::::
Converter.java
::::::::::::::
class Converter {
  public static void main(String[] args) {
    ConsoleReader console = new ConsoleReader(System.in); 
    String line; 
    System.out.print("Type the binary number: "); 
    line = console.readLine(); 
    double sum = 0; 
    int i = line.length() - 1; 
    while (i >= 0) {
      int digit = line.charAt(i) - '0'; 
      sum = sum + Math.pow(2, line.length() - 1 - i) * digit; 
      i = i - 1; 
    } 
    System.out.println(line + " in base 2 is " + Math.round(sum) + " in base 10"); 
  } 
}
::::::::::::::
Count.java
::::::::::::::
class Count {
  public static void main(String[] args) {
    ConsoleReader c = new ConsoleReader(System.in); 
    System.out.print("Type a string: "); 
    String line = c.readLine(); 
    System.out.print("Now type a single character: "); 
    String a = (c.readLine()).substring(0, 1); 
    int i = 0; // index in string 
    int j = 0; // counts occurrences of a in line 
    while (i < line.length()) {
      if ((line.substring(i, i+1)).equals(a)) {
        j = j + 1; 
      } 
      i = i + 1; 
    } 
    System.out.println(a + " occurs " + j + " times in " + line); 
  } 
}
::::::::::::::
Cubes.java
::::::::::::::
class Cubes {
  public static void main(String[] args) {
    ConsoleReader c = new ConsoleReader(System.in); 
    System.out.print("Please enter a number: "); 
    String line = c.readLine(); 
    int n; 
    try {
      n = Integer.parseInt(line); 
    } catch (Exception e) {
      n = -1; 
    }    
    while (n < 0) {
      System.out.println("Sorry, " + line + " was not a valid number."); 
      System.out.print("Please enter another number: "); 
      line = c.readLine(); 
      try {
        n = Integer.parseInt(line); 
      } catch (Exception e) {
        n = -1; 
      }     
    } 
    System.out.println("Very good, " + n + " is a positive integer which we can use."); 
    int i = 0; 
    int sum = 0; 
    while (i < n) {
      sum = sum + n * n * n; 
      i = i + 1; 
    } 
    System.out.println("The sum of the first " + n + " cubes is: " + sum); 
  } 
}
::::::::::::::
EggyPeggy.java
::::::::::::::
class EggyPeggy {
  public static void main(String[] args) {
    ConsoleReader console = new ConsoleReader(System.in); 
    String line; 
    System.out.print("Type a string: "); 
    line = console.readLine(); 
    while (! line.equals("done")) {
      String result = ""; 
      int i = 0; 
      while (i < line.length()) {
        char c = line.charAt(i); 
        if (c == 'a' || c == 'A' || 
            c == 'e' || c == 'E' || 
            c == 'i' || c == 'I' || 
            c == 'o' || c == 'O' || 
            c == 'u' || c == 'U') { 
          result = result + "egg" + c; 
        } else { 
          result = result + c; 
        } 
        i = i + 1; 
      } 
      System.out.println(result); 
      System.out.print("Type a string: "); 
      line = console.readLine(); 
    } 
    System.out.println("Theggank yeggoeggu."); 
  } 
}
::::::::::::::
Expo.java
::::::::::::::
class Expo {
  public static void main(String[] args) {
    int n = 1; 
    while (Math.pow(2, n) <= 10000 * n * n) {
      System.out.println("For n = " + n + ": " + Math.pow(2, n) + " <= " + 10000 * n * n); 
      n = n + 1; 
    } 
    System.out.println("For n = " + n + ": " + Math.pow(2, n) + " > " + 10000 * n * n); 
  } 
}
::::::::::::::
Match.java
::::::::::::::
class Match {
    public static void main(String[] args) {
	ConsoleReader c = new ConsoleReader(System.in); 
	System.out.print("Type the first string: "); 
	String one = c.readLine();
	System.out.print("Type the second string: "); 
	String two = c.readLine(); 
	int i = 0, sum = 0; 
	String matches = ""; 
	while (i < one.length() && i < two.length()) {
	    if (one.charAt(i) == two.charAt(i)) {
		sum = sum + 1;                 
                matches = matches + " " + i; 
	    }
            i = i + 1; 
	}
        System.out.println(one + " and \n" + two + 
                           " are identical in " + sum + 
                           " positions: " + matches); 
    }
}
::::::::::::::
Numbers.java
::::::::::::::
class Numbers {
  public static void main(String[] args) {
    
  } 
}
::::::::::::::
Oh.java
::::::::::::::
class Oh {
  public static void main(String[] args) {
     ConsoleReader console = new ConsoleReader(System.in);

        System.out.print("Please type something: ");
        String S = console.readLine(); 
        int i = 0;

        while (! S.equals("done")) {

                System.out.print("`" + S + "' reversed is ");
                i = S.length() - 1;
                while (i >= 0) {
                        System.out.print(S.substring(i, i+1));
                        i = i - 1;
                }

                System.out.print("Please type something else: ");
                S = console.readLine(); 
        }

  }
}
::::::::::::::
Parens.java
::::::::::::::
class Parens {
  public static void main(String[] args) {
    ConsoleReader console = new ConsoleReader(System.in); 
    String line; 
    System.out.print("Type a string: "); 
    line = console.readLine(); 
    int i = 0; 
    String result = ""; 
    while (i < line.length()) {
      char c = line.charAt(i); 
      if (c == 'a' || c == 'A' || 
          c == 'e' || c == 'E' || 
          c == 'i' || c == 'I' || 
          c == 'o' || c == 'O' || 
          c == 'u' || c == 'U') { 
        result = result + "(" + line.charAt(i) + ")"; 
      } else {
        result = result + line.charAt(i); 
      } 
      i = i + 1; 
    } 
    System.out.println(result); 
  } 
}
::::::::::::::
Permutations.java
::::::::::::::
class Permutations {
  public static void main(String[] args) {
    ConsoleReader c = new ConsoleReader(System.in); 
    System.out.print("Please enter a string: "); 
    String result = c.readLine(); 
    int i = 0; 
    while (i < result.length()) {
      result = result.substring(result.length() - 1) +  
               result.substring(0, result.length() - 1); 
      i = i + 1; 
      System.out.println(i + ". " + result); 
    } 
  } 
}
::::::::::::::
Pi.java
::::::::::::::
class Pi {
  public static void main(String[] args) {
    ConsoleReader c = new ConsoleReader(System.in); 
    int n = 1; 
    int sign = 1; 
    double sum = 0; 
    int j = 0; 
    while (Math.abs(sum - 3.14) > 0.001) {
      System.out.print("Adding " + sign + " * 4 / " + n); 
      sum = sum + 4.0 * sign / n;  
      n = n + 2; 
      sign = -1 * sign; 
      System.out.println(", sum becomes " + sum); 
    }     
    System.out.println("Thanks for using this program."); 
  } 
} 
::::::::::::::
Stability.java
::::::::::::::
class Stability {
  public static void main(String[] args) {
    int i = 0; 
    double sumL = 0, sumR = 0; 
    while (i < 50000) {
      i = i + 1; 
      sumL = sumL + 1.0/i; 
    } 
    System.out.println("From the left: " + sumL); 
    i = 50000; 
    sumR = 0; 
    while (i > 0) {
      sumR = sumR + 1.0/ i; 
      i = i - 1; 
    }     
    System.out.println("From the right: " + sumR);     
    System.out.println("The difference: " + (sumL - sumR)); 
  } 
}
::::::::::::::
Steno.java
::::::::::::::
class Steno {
  public static void main(String[] args) {
    ConsoleReader console = new ConsoleReader(System.in); 
    System.out.print("Please enter a string: "); 
    String line = console.readLine(); 
    String result = ""; 
    int i = 0; // index in the string  
    while (i < line.length()) {
      if (line.charAt(i) == 'a' || line.charAt(i) == 'A' || 
          line.charAt(i) == 'e' || line.charAt(i) == 'E' || 
          line.charAt(i) == 'i' || line.charAt(i) == 'I' || 
          line.charAt(i) == 'o' || line.charAt(i) == 'O' || 
          line.charAt(i) == 'u' || line.charAt(i) == 'U') { 

      } else { 
        result = result + line.charAt(i); 
      } 
      i = i + 1; 
    } 
    System.out.println("The string without vowels is: (" + result + ")"); 
  } 
}
::::::::::::::
Temps.java
::::::::::::::
class Temps {
  public static void main(String[] args) {
    ConsoleReader c = new ConsoleReader(System.in); 
    System.out.print("Please type x0: "); 
    double x0 = c.readDouble(); 
    System.out.print("Please type x1: "); 
    double x1 = c.readDouble(); 
    if (x0 <= x1) {
      while (x0 <= x1) {
        System.out.println(x0 + "C is " + (9/5.0 * x0 + 32) + "F"); 
        x0 += 1; 
      } 
    } else {
      System.out.println("Sorry, " + x0 + " is not smaller than " + x1); 
    }
  } 
}