Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded This error is thrown by which conditions?
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Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded
This error is thrown by which conditions?
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- Modify this threading example to use, exclusively, multiprocessing, instead of threading. import threadingimport time class BankAccount(): def __init__(self, name, balance): self.name = name self.balance = balance def __str__(self): return self.name # These accounts are our shared resourcesaccount1 = BankAccount("account1", 100)account2 = BankAccount("account2", 0) class BankTransferThread(threading.Thread): def __init__(self, sender, receiver, amount): threading.Thread.__init__(self) self.sender = sender self.receiver = receiver self.amount = amount def run(self): sender_initial_balance = self.sender.balance sender_initial_balance -= self.amount # Inserting delay to allow switch between threads time.sleep(0.001) self.sender.balance = sender_initial_balance receiver_initial_balance = self.receiver.balance receiver_initial_balance += self.amount # Inserting delay to allow switch between threads time.sleep(0.001)…When you start a new thread, it automatically multiplies by five. Thread 1 is formed initially, followed by Thread 2, and so on.... Assume that the scheduling policy is FIFO, and proceed as if it is. The sequence number of each thread is printed on it. This is the code that should be written to produce the following: Thread 5 is my name, and I was the fifth one ever made. Thread 3 is my name, and I was the third one ever made. Among the many threads that have been established, I am Thread 4, the fourth one. Among the many threads that have been produced, I am Thread 1, the first. 14 = Notations and RemarksErrors produced when calling 3. Find the maximum element from the BST or4. Find the minimum element from the BST before adding elements so the program should output 0(0) instead of an error "Exception in thread "main" java.lang.NullPointerException: Cannot read field "right" because "<local1>" is null at BST.findMax(BST.java:109) at BST.main(BST.java:194)" "Exception in thread "main" java.lang.NullPointerException: Cannot read field "left" because "<local1>" is null at BST.findMin(BST.java:118) at BST.main(BST.java:197)"
- Exercise 1: Write a thread class TabPrinter that prints the elements of an array of integers (in one line) every 2 seconds 5 times. Use the way of extending the class thread. Write the main method which creates and starts three threads Printer which will print different arrays of integers. After that it prints "Main won’t wait. Main exits". Modify the above thread program so that you implement the interface Runnable. Make the main thread waiting till all other threads finish execution. ____________________________________________________________________________________________ Exercise 2: Write a thread class TextThread that prints a text every 1 second 10 times. Read the following main class. Try to guess what will be its output. class Test { public static void main(String s[]) throws Exception { TextThread x = new TextThread ("I am thread x"); TextThread y= new TextThread ("I am thread y"); System.out.println("I am Main thread"); } } Write it and execute it. Is the…Need help to implement networking in python Server.py Load data from file This option will ask the user for a fully qualified path and will load a JSON file containing the information for users and pending messages. The format of the JSON file will be defined based on your implementation and it will the same used to save the data into file (menu option #4). Functionalities the server must provide: 1) User Sign Up: adds a user identified by a phone number to the system. a) Protocol: USR|username|password|display_name b) Response: 0|OK for success. 1| for an error. c) The server should validate that the username does not exist 2) User Sign In: verify user credentials a) Protocol: LOG|username|password b) Response: i) 0|OK → the credentials are correct. ii) 1|Invalid Credentials iii) 2|Already Logged In → in case that the user is logged in from another client. c) This will help the server knowing which user is connected. d) The server should keep a list of connected clients, which should…Steps to be followed: Create a class called MyThread that extends the Thread class. Declare an instance variable int limitToStop in the MyThread class. Create a parameterized constructor in the MyThread class that takes an int as a parameter to initialize a limitToStop instance variable. Override the run() method in the MyThread class. In the run() method, put a for-loop that goes from 0 to limitToStop. The block associated with the for-loop should print out only the odd numbers. Call Thread.sleep(1000) after every number you print out in the for-loop you created in the previous step. The Thread.sleep(1000) method throws an InterruptedException , which is a checked exception. Therefore, we need to enclose the Thread.sleep(1000) call in a try block. Also, add a catch block associated with the try that catches the InterruptedException and prints out the exception information using the printStackTrace() method. Create a MyThread variable using the new keyword in the main()…
- JAVA CODE Unchecked exceptions are exceptions that are usually the result of a mistake and we aren't expected to handle, while checked exceptions are exceptions that we reasonably expect to occur that we should handle whenever possible. Name one type of unchecked exception and one type of checked exception, and give an example of situations that might cause those exceptions to be thrown.#SumCalculator Class: Create a class named SumCalculator that extends the Thread class. This class calculates the sum of numbers within a provided range. Declare three instance variables: start, end, and sum in the SumCalculator class . start and end are the lower and upper bounds of the range, respectively, while sum stores the sum of the numbers within the range. Create a constructor that takes in two parameters: start and end, and initializes the corresponding instance variables. The sum variable should be initialized to 0. Define the run method to calculate the sum of the numbers within the range. Inside of the run method use a for-loop to iterate over the numbers within the range and add each number to the sum variable. Define the accessor method getSum that returns the value of the sum variable. #Main Class: Create a class named Main that contains the main method, the entry point of the program. Create two objects of the SumCalculator class , with the first…Please written by computer source Java exceptions.Create a custom error with a number field. Create a loop from 0 to 1500. Divide each number from 0 to 1500 by 17 and if it is divisible without a remainder, then throw a custom exception with a number that is divided entirely. Catch all the exceptions and display a list of all the numbers from 0 to 1500, which are completely divided by 17. Provide full source code and step-by-step explanation.
- in java fx Write a program that launches 1,000 threads. Each thread adds 1 to a variable sum that initially is 0. You need to pass sum by reference to each thread. In order to pass it by reference, define an Integer wrapper object to hold sum. Run the program with and without synchronization to see its effect.Parallel version 1 (Name this file as Q1_PLV1.java): o Repeat the sequential version using two threads along with the main thread. o Each thread creates a list of 25,000 students with randomly generated GPAs, randomly generated Ages, and sequential IDs. o Each of the two threads then calculates the average GPA and AGE (after creating the lists). o The two threads work in parallel. o The main thread waits for the two threads to finish and then calculates and prints the final average GPA and AGE from what is reported by the individual threads. • Parallel version 2 (Name this file as Q1_PLV2.java): o Repeat the Parallel version1 task using five threads (each is working on 10000 students) along with the main thread. To measure the time your computer takes to complete a certain task: • Read and store the current time (t1) before you start the task (e.g., before creating the lists), • After the task (e.g., after calculating the average), read and store the current time (t2). • The…The code below gives the error : Exception in thread "main" java.lang.IllegalArgumentException: bound must be positive at java.base/java.util.Random.nextInt at the line code (arr[i]=rand.nextInt(high-low+1)+low). How to fix this?? public static int[] generateIntArray(int size, int low, int high){ Random rand = new Random(); int[] arr=new int[size]; for(int i=0;i<size;i++){ arr[i]=rand.nextInt(high-low+1)+low; } return arr; } }