C# language syntax and statement

Submitted by planetsourcecode on Sun, 07/05/2009 - 21:10

This article will show and explain you the C# language syntax and statement. 1). Declaring a variable


int a;
int age,salary;
int num=8;
string name;
string fullname=”amar”;

2). Loop


int i=0;
While(i5)
{
Console.WriteLine(i);
++i;
}

Output:-- 0 1 2 3 4 3). For Loop


int i=0;
for(int i=0;i5;i++)
{
Console.WriteLine(i);
}

Output:-- 0 1 2 3 4 4). Do While


int i=0;
do
{
Console.WriteLine(i);
i++;
}
while(i5);

output:-- 0 1 2 3 4 Explanation: The output is same as the while loop but main difference is that condition is checked after exceuting the code inside the loop statement 5). Foreach


string [] names=new string[]{"ram","varun","aman"};
for each(string name in names)
{
Console.WriteLine(name);
}

output:-- ram varun aman Explanation: foreach loop will print the name as it can be used to iterate through a collection like array etc. 6). if...else


int age=10;
if (age==10)
{
Console.WrietLine("your age is 10");
}
else
{
Console.WriteLine("I don't know");
}

Output:-- your age is 10 Explanation: Execute a statement based on condition 7). Break


string [] names=new string[]{"ram","varun","aman"};
for each(string name in names)
{
Console.WriteLine(name);
if(name=="aman")
break;
}

Output:-- ram varun Explanation: Break statement is used to break from Loop statement 8). Continue


string [] names=new string[]{"ram","varun","aman"};
for each(string name in names)
{
Console.WriteLine(name);
if(name=="varun")
continue;

Console.WriteLine("Address");
Console.WriteLine("City");
}

Output:-- ram varun Explanation: Continue statement will move to the next iteration of the loop, in above case it will execute the codes, if a continue statement comes it will not execute the code after that and move to the next iteration. 8).Switch statement


int age=3;
switch(age)
{
case 10:
   Console.WriteLine("age=10");
   break;
case 20:
   Console.WriteLine("age=20");
   break;
case 30:
   Console.WriteLine("age=30");
   break;
default:
   Console.WriteLine("No age");
   break;
}

Output:-- age=10 About the author: PlanetSourceCode.in is a place for all developer providing free source codes, articles, MCA complete projects,complete application in PHP, C/C++, Javascript, Visual Basic, Cobol, Pascal, ASP/VBScript, AJAX, SQL, Perl, Python, Ruby, Mobile Development

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