static void Main(string[] args)
{
int a = 12345;
int b = a;
Console.WriteLine("Before");
Console.WriteLine("a : {0}", a);
Console.WriteLine("b : {0}", b);
a = 98765;
Console.WriteLine("After");
Console.WriteLine("a : {0}", a);
Console.WriteLine("b : {0}", b);
object c = 12345;//boxing
object d = c;
Console.WriteLine("Before");
Console.WriteLine("c : {0}", c);
Console.WriteLine("d : {0}", d);
c = 98765; //boxing
Console.WriteLine("After");
Console.WriteLine("c : {0}", c);
Console.WriteLine("d : {0}", d);
CMyInt e = new CMyInt();
e.theValue = 12345;
CMyInt f = e;
Console.WriteLine("Before CMyInt");
Console.WriteLine("e : {0}", e);
Console.WriteLine("f : {0}", f);
e.theValue = 98765;
Console.WriteLine("After");
Console.WriteLine("e : {0}", e);
Console.WriteLine("f : {0}", f);
/*
* Console.Write("Input Name :");
* string tmpName = Console.ReadLine();
* Console.WriteLine("YourName : {0}", tmpName);
*
* Console.Write("\nInput Char: ");
* ConsoleKeyInfo tmpKey = Console.ReadKey();
*
* int i;
* for (i = 0; i < tmpName.Length; i++) {
* if (tmpName[i].Equals(tmpKey.KeyChar)==true)
* {
* break;
* }
* }
* if (i == tmpName.Length)
* {
* Console.WriteLine("\nChar:{0} Fail", tmpKey.KeyChar);
* }
* else
* {
* Console.WriteLine("\nChar:{0} Success!", tmpKey.KeyChar);
* }
*/
int tmpSW = 1;
switch (tmpSW)
{
case 0:
Console.WriteLine("SW : 0");
break;
case 1:
Console.WriteLine("SW : 1");
break;
default:
Console.WriteLine("NONE");
break;
}
string strSW = "apple";
switch (strSW)
{
case "apple":
Console.WriteLine("apple. apple");
break;
case "banana":
Console.WriteLine("banana. banana");
break;
default:
Console.WriteLine("Fruits");
break;
}
int i;
int[] arr = new int[] { 1, 2, 3, 4, 5 };
for (i = 0; i < arr.Length; i++)
{
Console.Write("{0} ", arr[i]);
}
Console.WriteLine();
foreach (int iter in arr)
{
Console.Write("{0} ", iter);
}
Console.WriteLine();
Console.ReadKey();
}
static void Main(string[] args)
{
int a = 12345;
int b = a;
Console.WriteLine("Before");
Console.WriteLine("a:{0}", a);
Console.WriteLine("b:{0}", b);
Console.WriteLine("After");
Console.WriteLine("a:{0}", a);
Console.WriteLine("b:{0}", b);
Object c = 12345;
Object d = c;
Console.WriteLine("Before");
Console.WriteLine("c:{0}", c);
Console.WriteLine("d:{0}", d);
c = 98765;
Console.WriteLine("After");
Console.WriteLine("c:{0}", c);
Console.WriteLine("d:{0}", d);
CMyInt e = new CMyInt();
e.theValue = 12345;
CMyInt f = e;
Console.WriteLine("Before");
Console.WriteLine("e:{0}", e);
Console.WriteLine("f:{0}", f);
e.theValue = 98765;
Console.WriteLine("After");
Console.WriteLine("e:{0}", e);
Console.WriteLine("f:{0}", f);
Console.Write("Input Name : ");
string tmpName = Console.ReadLine();
Console.WriteLine("Your Name : {0}", tmpName);
Console.Write("\nInput Char: ");
ConsoleKeyInfo tmpKey = Console.ReadKey();
int i;
for (i = 0; i < tmpName.Length; i++)
{
if (tmpName[i].Equals(tmpKey.KeyChar) == true)
{
break;
}
}
if (i == tmpName.Length)
{
Console.WriteLine("\nChar:{0}Fail", tmpKey.KeyChar);
}
else
{
Console.WriteLine("\nChar:{0} Success", tmpKey.KeyChar);
}
string tmpSW = "apple";
switch (tmpSW)
{
case "apple":
Console.WriteLine(" apple,apple");
break;
case "banana":
Console.WriteLine("banana,banana");
break;
default:
Console.WriteLine("Fruits");
break;
}
int[] arr = new int[] { 1, 2, 3, 4, 5 };
for (i = 0; i < arr.Length; i++)
{
Console.Write("{0}", arr[i]);
}
Console.WriteLine();
foreach (int iter in arr)
{
Console.Write("{0}", iter);
}
Console.WriteLine();
int bCheck = 1;
for (i = 0; i < arr.Length; i++)
{
if (arr[i] < 6)
{
continue;
}
bCheck = 0;
break;
}
if (bCheck == 1)
{
Console.Write("All Items are below 6");
}
else
{
Console.Write("One or more Item are above 5");
}
Console.ReadKey();
}
static void Main(string[] args)
{
int a = 12345;
int b = a;
Console.WriteLine("Before");
Console.WriteLine("a : {0}", a);
Console.WriteLine("b : {0}", b);
a = 98765;
Console.WriteLine("After");
Console.WriteLine("a : {0}", a);
Console.WriteLine("b : {0}", b);
object c = 12345;//boxing, 참조타입
object d = c;
Console.WriteLine("Before");
Console.WriteLine("c : {0}", c);
Console.WriteLine("d : {0}", d);
c = 98765;//boxing
Console.WriteLine("After");
Console.WriteLine("c : {0}", c);
Console.WriteLine("d : {0}", d);
CMyInt e = new CMyInt();//참조형이므로 값이 같이 바뀜.
e.theValue = 12345;
CMyInt f = e;
Console.WriteLine("Before");
Console.WriteLine("e : {0}", e);//ToString호출
Console.WriteLine("f : {0}", f);
e.theValue = 98765;//boxing
Console.WriteLine("After");
Console.WriteLine("e : {0}", e);
Console.WriteLine("f : {0}", f);
/* Console.Write("\nInput Name : ");
* string tmpName = Console.ReadLine();
* Console.WriteLine("Your Name : {0}", tmpName);
*
* Console.Write("\nInput Char : ");
* ConsoleKeyInfo tmpKey = Console.ReadKey();
*
* int i;
* for (i = 0; i < tmpName.Length;i++)
* {
* if(tmpName[i].Equals(tmpKey.KeyChar)==true)
* {
* break;
* }
* }
*
* if(i==tmpName.Length)
* {
* Console.WriteLine("\nChar : {0} Fail", tmpKey.KeyChar);
* }
* else
* {
* Console.WriteLine("\nChar : {0} Success", tmpKey.KeyChar);
* }
*/
//int tmpSW = 1;
//switch(tmpSW)
//{
// case 0:
// Console.WriteLine("SW : 0");
// break;
// case 1:
// Console.WriteLine("SW : 1");
// break;
// default:
// Console.WriteLine("None");
// break;
//}
//string strSW = "apple";
//switch(strSW)
//{
// case "apple":
// Console.WriteLine("apple,apple");
// break;
// case "banana" :
// Console.WriteLine("banana, banana");
// break;
// default:
// Console.WriteLine("Fruits");
// break;
//}
//int i;
//int[] arr = new int[] { 1, 2, 3, 4, 5 }; //선언과 동시에 값 대입
//for (i = 0; i < arr.Length;i++ )
//{
// Console.Write("{0} ", arr[i]);
//}
//Console.WriteLine();
//foreach(int iter in arr)//배열안의 모든 값을 순서 상관없이 꺼내라!
//{
// Console.Write("{0}", iter);
//}
//Console.WriteLine();
Console.ReadKey();
}
static void Main(string[] args)
{
int a = 12345;
int b = a;
Console.WriteLine("Before");
Console.WriteLine("a : {0} ", a);
Console.WriteLine("b : {0} ", b);
a = 98765;
Console.WriteLine("After");
Console.WriteLine("a : {0} ", a);
Console.WriteLine("b : {0}", b);
object c = 12345; //boxing
object d = c;
Console.WriteLine("Before");
Console.WriteLine("c : {0} ", c);
Console.WriteLine("d : {0}", d);
c = 98765;
Console.WriteLine("After");
Console.WriteLine("c : {0} ", c);
Console.WriteLine("d : {0}", d);
CMyInt e = new CMyInt(); //객체 참조
e.theValue = 12345;
CMyInt f = e;
Console.WriteLine("Before");
Console.WriteLine("e : {0} ", e);
Console.WriteLine("f : {0}", f);
e.theValue = 98765; // e와 f는 같은 주소를 참조하기 때문에 e의 값이 변경되면 f값도 같이 변경
Console.WriteLine("After");
Console.WriteLine("e : {0} ", e);
Console.WriteLine("f : {0}", f);
/*
* Console.Write("Input Name : ");
* string tmpName = Console.ReadLine();
* Console.WriteLine("Your Name : {0}", tmpName);
*
* Console.Write("\nInput Char : ");
* ConsoleKeyInfo tmpKey = Console.ReadKey();// 입력
*
* int i;
* for(i = 0; i < tmpName.Length; i++)
* {
* if (tmpName[i].Equals(tmpKey.KeyChar) == true) //KeyChar 누른 키에 해당하는 문자를 가져온다.
* {
* break;
* }
* }
* if (i == tmpName.Length)
* {
* Console.WriteLine("\nChar : {0} Fail", tmpKey.KeyChar);
* }
* else
* {
* Console.WriteLine("\nChar : {0} Success", tmpKey.KeyChar);
* }
*/
int tmpSW = 1;
switch (tmpSW)
{
case 0:
Console.WriteLine("SW : 0");
break;
case 1:
Console.WriteLine("SW : 1");
break;
default:
Console.WriteLine("None");
break;
}
string strSW = "apple";
switch (strSW) // 문자열이 올 수 있음
{
case "apple":
Console.WriteLine("apple, apple");
break;
case "banana":
Console.WriteLine("banana, banana");
break;
default:
Console.WriteLine("Fruits");
break;
}
int i;
int[] arr = new int[] { 1, 2, 3, 4, 5 };
for (i = 0; i < arr.Length; i++)
{
Console.Write("{0} ", arr[i]);
}
Console.WriteLine();
foreach (int iter in arr) // for문과 같은 효과
{
Console.Write("{0} ", iter);
}
Console.WriteLine();
int bCheck = 1;
for (i = 0; i < arr.Length; i++)
{
if (arr[i] < 6)
{
Console.Write(bCheck);
//continue;
break;
}
bCheck = 0;
Console.Write(bCheck);
break;
}
if (bCheck == 1)
{
Console.Write("All Items are below 6");
}
else
{
Console.Write("One or more Item are above 5");
}
Console.ReadKey();
}
