Page 34 - DCAP312_WEB_TECHNOLOGIES_II

Web Technologies-II

Notes of execution of other statements, create an object, or assign a value to a variable, property, or
field. Statements are usually terminated by a semicolon.
Statements can be grouped into comma-separated statement lists or brace-enclosed statement
blocks.

Examples
int sampleVariable; // declaring a variable
sampleVariable = 5; // assigning a value
SampleClass sampleObject = new SampleClass(); // constructing a new object
sampleObject.SampleInstanceMethod(); // calling an instance method
SampleClass.SampleStaticMethod(); // calling a static method
// executing a “for” loop with an embedded “if” statement
for(int i = 0; i < upperLimit; i++)
{
if (SampleClass.SampleStaticMethodReturningBoolean(i))
{
sum += sampleObject.SampleMethodReturningInteger(i);
}
}
Statement Blocks

A series of statements surrounded by curly braces form a block of code. Among other purposes,
code blocks serve to limit the scope of variables defined within them. Code blocks can be nested
and often appear as the bodies of methods, the protected statements of a try block, and the code
within a corresponding catch block.

private void MyMethod ()
{
// This block of code is the body of “MyMethod()”
CallSomeOtherMethod();
try
{
// Here is a code block protected by the “try” statement.
int variableWithLimitedScope;
// “variableWithLimitedScope” is accessible in this code block.
}
Catch (Exception)
{
// Here is yet another code block.
// “variableWithLimitedScope” is not accessible here.
}
// “variableWithLimitedScope” is not accessible here, either.
CallYetAnotherMethod ();
// Here ends the code block for the body of “MyMethod ()”.
}

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