EDP Flashcards
is represented by classes
Exception
All the exceptions are subclassesin the built-in exception class named blank,
wherein it is a part of namespace System.
Exception
These exceptions are user program-generated.
ApplicationException
These exceptions are generated by Common Language Runtime (CLR).
SystemException
This is at the top of the standards’ exceptions hierarchy. The runtime system in C#
generates all the exceptions.
System.Exception
Errors in arithmetic or conversion operation will be thrown in this exception
System.ArithmeticException
When an overflow occurs in a checked operation, it will be thrown in
OverflowException.
System.OverflowException
Any invalid argument in a method will be thrown in this exception.
System.ArgumentException
If there is an unacceptable argument passed to a method, it will be thrown
in blank.
System.ArgumentNullException
Throw in this exception when attempting to index an array through an
index that is either less than zero or greater than the maximum length of index.
System.IndexOutOfRangeException
The exception StackOverflowException is called when the
execution stack is exhausted by having too many pending method calls.
System.StackOverflowException
If the available memory becomes too low to accommodate a memory
allocation request, it will be thrown in OutOfMemoryException.
System.OutOfMemoryException
This keyword is used to check for the occurrence of any exceptions enclosed to it.
try
This keyword catches the exception that is thrown on the occurrence of exception in a try block.
catch
, it requires or inheritsthose exceptions in blank or one of its standard derived
classes.
System.Exception
This keyword executes a given statement even if the exception is thrown or not thrown. This block
cannot transfer control by using break, continue, return, or goto.
finally
It is used to throw an exception manually.
throw
This is a class in C#.net that can be found in the System.Threading namespace
Thread
The blank operator is used to create a
new object.
new
The blank an instance of a class derived from the Exception class.
exception_Objectis
Listing 1 shows how blank is thrown manually.
DivideByZeroException
a Running thread can be forced to the
Stopped state by calling the blank method.
Abort
This exception checks the format of the string or argument if it is invalid.
System.FormatException –
The thread remains in the Unstarted state until the Thread method blank is called,
Start
use blank to execute the code when the thread started.
ThreadStart
A blank delegate represents a method that runs in the Thread class
ThreadStart
When the blank object is created, the delegate will be used to initialize the thread object.
thread
A new thread begins its life cycle in the blank state
Unstarted
This is a class in C#.net that can be found in the System.Threading namespace
thread
A thread enters the blank state when the thread issues an input/output (I/O) request.
Blocked
A Running thread may enter the blank state either when it is asked to sleep for the specified number of milliseconds or when the Monitor method Wait is called.
WaitSleepJoin
The blank method moves all waiting threads back to the
Started state.
PulseAll
it calls the other thread’s blank method to
join the two (2) threads.
Join
A thread is ready to run and is waiting for the CPU time.
Ready
The highest priority Started thread enters the blank state
Running
A thread is created within the Common Language Runtime (CLR) but has not started.
Unstarted
When using the Thread class, the first thread to be performed in a process is known as the blank.
main thread
A suspended thread resumes to Started state when the conditions for which is it was suspended are
no longer valid.
Started
A thread is in running mode after invoking its Start method.
Running
A running thread is suspended temporarily by invoking either the Sleep method or the
monitor’s Wait method.
WaitSleepJoin
A thread is blocked when it is waiting for a resource or I/O operations.
Blocked
A thread has finished its task.
Stopped
If the thread is aborted, an
exception will be thrown named blank.
ThreadAbortException
The blank method moves
the next waiting thread back to the Started state.
Pulse
It returns the current thread that is running.
CurrentThread
It returns a Boolean value indicating the execution status of the recent thread.
IsAlive
It is used to get or set a value that indicates whether the thread is a background thread or not.
sBackground
It is used to get or set the name of the thread.
Name
It is used to get or set a value that represents the priority of a thread.
Priority
From the WaitSleepJoin state, a thread returns to the
Started state when another thread invokes the Monitor method.
Pulse or PulseAll
It is used to get the value that contains the states of the recent thread
ThreadState
It terminates the thread when calling this method and raises
ThreadAbortException in the thread.
public void Abort()
It interrupts the thread that is in the state of WaitSleepJoin.
public void Interrupt()
It is used to stop the calling thread until a thread terminates.
public void Join()
It is used to start a thread.
public void Start()
It is used to withdraw an abort request for the ongoing thread.
public static void ResetAbort()
- public static void Sleep() – It is used to pause a thread for the stated number in milliseconds.
public static void Sleep()
