C#

void findSimilarMethods()
{
    MethodInfo example = this.GetType().GetMethod("ExampleMethod");
    ParameterInfo[] parameters = example.GetParameters();
    List<MethodInfo> matches = new List<MethodInfo>();

    MethodInfo[] methods = this.GetType().GetMethods();
    foreach (MethodInfo current in methods) {
        ParameterInfo[] currentParams = current.GetParameters();
        if ( current.ReturnType != example.ReturnType )
            continue;
        if ( currentParams.Length != parameters.Length )
            continue;
        if ( !ParameterEquality(parameters, currentParams) )
            continue;
        matches.Add(current);
    }
}

// a helper method to check parameter type equality
bool ParameterEquality(ParameterInfo[] a, ParameterInfo[] b)
{
    if (a.Length != b.Length)
        return false;
    for (int i = 0; i < a.Length; i++)
        if (a[i].GetType() != b[i].GetType())
            return false;
    return true;
}