C#

public static void sample(int i, string a)
{
   bool b= true;
 //more stuff
}

public static void sample(int i, bool b)
{
   string s = string.Empty;
 //more stuff
}

public static void sample(string a, bool b)
{
   int i = 100;
 //more stuff
}

public static void sample(int i, string a)
{
   _sample(i,false,true,a);
}
public static void sample(int i, bool b)
    _sample(i,false,b,string.Empty);
}
public static void sample(string a, bool b)
{
   _sample(100,false,b,a);
}
private static void _sample(int i,bool a,bool b,string a_string)
{
   // implement 'sample' operation
}

public static void sample(int i, string s, bool b)
{
    if (i == default(int)) { i = 100; }
    if (s == default(string)) { s = string.Empty; }
    if (b == default(bool)) { b = true; }

    // The rest of your method...
}

public static void sample(int i, string s, bool b)
{
    // Do work here
}

public static void sample(int i)
{
    sample(i, string.Empty, true);
}

public static void sample(int i, string s)
{
    sample(i, s, true);
}

public static void sample(int i, bool b)
{
    sample(i, string.Empty, b);
}

public static void sample(string s)
{
    sample(100, s, true);
}

public static void sample(string s, bool b)
{
    sample(100, s, b);
}

public static void sample (bool b)
{
    sample(100, string.Empty, b);
}

public static void sample()
{
    sample(100, string.Empty, true);
}