How can a thread go from waiting to runnable state?

when sleep() is called on thread it goes from running to waiting state and can return to runnable state when sleep time is up. b. sleep() is a static method, causes the currently executing thread to sleep for the specified number of milliseconds.

How can a thread go from waiting to running state?

When the start() method is called on a thread, the thread scheduler moves it to Runnable state. Whenever the join() method is called on a thread instance, the current thread executing that statement will wait for this thread to move to the Terminated state.

What state can a waiting thread transition to?

When a thread is in the waiting state when it waits for another thread on a condition. When this condition is fulfilled, the scheduler is notified, (when notify () or notifyAll() methods invokes) and the waiting thread is moved to runnable state.

Which method is used to move a thread from a new state to runnable state?

The start() method of the Thread class is used to initiate the execution of a thread and it goes into runnable state and the sleep() and wait() methods of the Thread class sends the thread into non runnable state. After non runnable state, thread again comes into runnable state and starts its execution.

Which of the following can be used to move thread from waiting state to runnable?

when sleep() is called on thread it goes from running to waiting state and can return to runnable state when sleep time is up.

Fresher Java Interview Question Answer Different Thread States Explain Runnable,Running,Blocked,Wait

In which event thread enters in to not runnable state?

A thread enters the "Not Runnable" state when one of these four events occur: someone calls its suspend() method. someone calls its sleep() method. the thread uses its wait() method to wait on a condition variable.

Which of the following will ensure the thread will be in running state?

Correct Option: D

wait() always causes the current thread to go into the object's wait pool. Hence, using this in a thread will keep it in running state.

Which of the following options can be the state of a thread?

Answer: C. Explanation: A thread can be in one of the five states: New, Runnable, Running, Non-Runnable (Blocked), Terminated.

Which is a valid state for a thread to go through?

Runnable State: A thread that is ready to run is moved to runnable state. In this state, a thread might actually be running or it might be ready to run at any instant of time. It is the responsibility of the thread scheduler to give the thread, time to run.

In which state a runnable thread can enter for a specified interval of time?

A runnable thread can enter the timed waiting state for a specified interval of time. It transitions back to the runnable state when that time interval expires or when the event it's waiting for occurs.

What is notifyAll method in Java?

notifyAll() wakes up all threads that are waiting on this object's monitor. A thread waits on an object's monitor by calling one of the wait methods. The awakened threads will not be able to proceed until the current thread relinquishes the lock on this object.

When a process is waiting state and then goes to ready state when?

A process moves from run state to block or wait state if it requires an I/O operation or some blocked resource during its execution. After the I/O operation gets completed or resource becomes available, the process moves to the ready state.

What is thread runnable state?

RUNNABLE. Thread state for a runnable thread. A thread in the runnable state is executing in the Java virtual machine but it may be waiting for other resources from the operating system such as processor.

What is the difference between run () and start () methods in threads?

start method of thread class is implemented as when it is called a new Thread is created and code inside run() method is executed in that new Thread. While if run method is executed directly than no new Thread is created and code inside run() will execute on current Thread and no multi-threading will take place.

Which of the following methods will start this thread public class my thread implements runnable?

Java Thread start() method

The start() method of thread class is used to begin the execution of thread.

Which of the following methods are static methods pertaining to a state of thread?

The methods sleep() and yield() are static methods of Thread.

Can we run two threads simultaneously?

Yes, A program can run two threads at the same time. it is called Multi threading.

What is a dead thread?

A thread in this state transitions back to the runnable state when that time interval expires or when the event it is waiting for occurs. Terminated (Dead) − A runnable thread enters the terminated state when it completes its task or otherwise terminates.

What is the thread state if the thread instance is created but start method has not been invoked?

New: This is the state the thread is in after the Thread instance has been created but the start() method has not been invoked on the thread. It is a live Thread object, but not yet a thread of execution. At this point, the thread is considered not alive.

Which function is used to make a thread runnable?

The start() method of Thread class is used to start a newly created thread. It performs the following tasks: A new thread starts(with new callstack). The thread moves from New state to the Runnable state.

Which of the following state is not used in a thread life cycle?

Answer. According to sun, there is only 4 states in thread life cycle in java new, runnable, non-runnable and terminated. There is no running state.

How can we avoid deadlock in Java?