Analyze the following code:
public class Test implements Runnable{
public static void main(String[] args){
Test t = new Test();
}
public Test(){
Thread t = new Thread(this);
t.start();
}
public void run(){
System.out.println("test");
}
}
public class Test implements Runnable{
public static void main(String[] args){
Test t = new Test();
}
public Test(){
Thread t = new Thread(this);
t.start();
}
public void run(){
System.out.println("test");
}
}
A. The program has a compilation error because t is defined in both the main() method and the constructor Test().
B. The program compiles fine, but it does not run because you cannot use the keyword this in the constructor.
C. The program compiles and runs and displays nothing.
D. The program compiles and runs and displays test.
Answer: Option D
A. A lightweight process that runs independently within a program
B. A data structure to store variables
C. A type of loop
D. A synchronization mechanism
Which interface is used to create a thread in Java?
A. Processor
B. Executor
C. Threadable
D. Runnable
What is the main advantage of using multithreading in Java programs?
A. Reduced memory usage
B. Simplicity of code
C. Improved program performance by utilizing multiple CPUs or CPU cores
D. Elimination of exceptions
How can you create a new thread in Java by implementing the Runnable interface?
A. Create an object of the Thread class
B. Create a class that implements the Runnable interface and override the run() method
C. Use the start() method of the main thread
D. Create an object of the Thread class
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