raghul1212

Get Orders API

Endpoint

GET /api/v1/orders

Description

Fetches a list of orders from the system.
No authentication is required.

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raghul1212

Feature	Runnable	Callable
Return Value	void—cannot return any value	Generic type T—can return a result
Exception Handling	Cannot throw checked exceptions (only runtime exceptions)	Can throw checked exceptions
Functional Method	public void run()	public T call() throws Exception
Integration	Works with Thread and Executor	Works with ExecutorService and returns a Future
Use Case	Fire-and-forget tasks where no output is required	Tasks that need a computed result or proper error signal

raghul1212

Feature	Deadlock	Starvation
Definition	A situation where two or more processes are waiting indefinitely for resources held by each other, and none can proceed.	A situation where a process waits indefinitely because higher-priority processes continuously consume the resources it needs.
Cause	Circular wait among processes for resources.	Low-priority process keeps getting preempted by higher-priority processes.
Occurrence	Happens due to mutual exclusion, hold-and-wait, no preemption, and circular wait conditions.	Happens due to scheduling policies that favor certain processes (e.g., priority scheduling).
Resolution	Requires deadlock handling techniques like deadlock prevention, avoidance, detection & recovery.	Can be resolved by using aging (gradually increasing priority) or fair scheduling.
Example	Process P1 holds resource R1 and waits for R2, while P2 holds R2 and waits for R1 → both wai

raghul1212

Checked Exception (Compile-time Exception)	Unchecked Exception (Runtime Exception)
The intent is to ensure that developers explicitly consider and handle the potential error conditions, leading to more robust and reliable code.	An unchecked exception occurs during execution of the program, typically caused by programming errors or logical flaws.
It’s a type of exception that should be either handled using a try-catch block or declared in the method’s throws clause.	Unlike the checked exception, this exception is not intended to be handled or declared in the method’s throws clause. However, a try-catch block can be used to handle any runtime exceptions that are expected to occur and prevent our program from crashing.
This exception will occur during the compiling time of your program.	This exception will occur during the execution of your program.
The Exception class and all its subclasses are compile-time exceptions. If you want to create a custom compile-ti