Select the correct answerWhich of these class is used to make a thread?OptionsSystemStringThreadRunnable

Break Down the Problem

1. Identify the purpose of each class in the provided options.
2. Determine which class is specifically designed for creating threads in Java.

Relevant Concepts

1. System: This class provides access to system resources, but it is not used to create threads.
2. String: This class is used for manipulating strings. It does not pertain to thread creation.
3. Thread: This class represents a thread of execution in a program. It can be instantiated to create a new thread.
4. Runnable: This is an interface that must be implemented by any class whose instances are intended to be executed by a thread. It is not a class by itself but is used in conjunction with the Thread class.

Analysis and Detail

• The Thread class allows for creating a thread by instantiating it and overriding its run() method.
• The Runnable interface, while fundamental for thread creation, requires an implementation class to define the run() method and is typically used along with the Thread class to execute threads.

Verify and Summarize

• After analyzing the options, the only class that directly allows for the creation of threads is the Thread class.

Final Answer

The correct answer is Thread.