Program 1
using System;
namespace Hello
{
class Program
{
static void Main()
{
Console.WriteLine("Hello, World ");
Console.WriteLine("Computer Programing");
Console.WriteLine("Papon Saelee");
Console.ReadLine();
}
}
}
Program 4.1
using System;
namespace IntegerRange{
class Program{
static void Main(){
Console.WriteLine("min sbyte = " + SByte.MinValue);
Console.WriteLine("max sbyte = " + SByte.MaxValue);
Console.WriteLine("min byte = " + Byte.MinValue);
Console.WriteLine("max byte = " + Byte.MaxValue);
Console.WriteLine("min short = " + Int16.MinValue);
Console.WriteLine("max short = " + Int16.MaxValue);
Console.WriteLine("min ushort = " + UInt16.MinValue);
Console.WriteLine("max ushort = " + UInt16.MaxValue);
Console.WriteLine("min int =" + Int32. MinValue);
Console.WriteLine("max int =" + Int32. MaxValue);
Console.WriteLine("min uint =" + UInt32. MinValue);
Console.WriteLine("max uint =" + UInt32. MaxValue);
Console.WriteLine("min long =" + Int64. MinValue);
Console.WriteLine("max long =" + Int64. MaxValue);
Console.WriteLine("min ulong =" + UInt64. MinValue);
Console.WriteLine("max ulong =" + UInt64. MaxValue);
Console.ReadLine();
}
}
}
Program 4.2
using System;
namespace DisplaySomeMoney {
class Program{
static void Main(){
double someMoney = 39.45;
Console.Write("The money is");
Console.WriteLine(someMoney);
double someMoney1 = 39.46;
Console.Write("The money is");
Console.WriteLine(someMoney1);
double someMoney2 = 39.47;
Console.Write("The money is");
Console.WriteLine(someMoney2);
double someMoney3 = 39.48;
Console.Write("The money is");
Console.WriteLine(someMoney3);
double someMoney4 = 39.49;
Console.Write("The money is");
Console.WriteLine(someMoney4);
double someMoney5 = 39.50;
Console.Write("The money is");
Console.WriteLine(someMoney5);
Console.ReadLine();
}
}
}
Program 4.4
using System;
namespace Relational{
class Program{
static void Main(string[] args){
int x = 17;
int y = 5;
Console.WriteLine("{0} == {1} = {2}", x,y,x == y);
Console.WriteLine("{0}! = {1} = {2}", x,y,x != y);
Console.WriteLine("{0} < {1} = {2}", x,y,x < y);
Console.WriteLine("{0} <= {1} = {2}", x,y,x <= y);
Console.WriteLine("{0} > {1} = {2}", x,y,x > y);
Console.WriteLine("{0} >= {1} = {2}", x,y,x >= y);
Console.ReadLine();
}
}
}
Program 4.5
using System;
namespace ShortCircuit{
class Program{
static void Main(string[] args){
int x = 4;
int y = 5;
Console.WriteLine("x = {0}, y = {1}", x, y);
bool result = true || (++x == y);
Console.WriteLine("result = {0}",result);
Console.WriteLine("x = {0}, y = {1}", x, y);
result = true && (++x == y);
Console.WriteLine("result = {0}",result);
Console.WriteLine("x = {0}, y = {1}", x, y);
Console.ReadLine();
}
}
}
Program 2
using System;
namespace DemoEscapeSquences {
class Program{
static void Main() {
Console.WriteLine("This Line \tcontains two \ttabs ");
Console.WriteLine("This statement\ncontains a new line");
Console.WriteLine("This statement sound three alerts\a\a\a");
Console.ReadLine();
}
}
}
