Is the static block always run execute first in java. Explain it with java code. Considering a class with one variable and static block.explain both conditions when static execute first and other is when the static block does not execute

What is the difference between ref and out parameters in C#? a. Both are used interchangeably. b. ref parameters must be initialized before passing them to a method, while out parameters do not need to be initialized. c. out parameters must be initialized before passing them to a method, while ref parameters do not need to be initialized. d. There is no difference between them.

In java please help with the following: Consider given the FileProcessor a class. Because this class locks some computer resources it is required that this class is instantiated only once. Using singleton design pattern create an application (create all necessary classes and implement the application main method) that will enforce the unique instantiation of the given class.

What is the best reason to make a method be a static method? A. When the method does not make use of any of the class variables. B. When it includes a reference to a static variable. C. When we want to guarantee that it is a public method. D. Static methods should not be used in object oriented languages.

QUESTION 21 Java uses early binding for all methods except for a few cases. O False O True

Write the Java class named Paint that has/should do the following: 1. Three properly encapsulated variables: brand of type String, code of type int, and color of type String. 2. A constructor that takes two parameters and sets the brand and color instance variables. The code should be set to the number of characters in brand plus the number of characters in color. For example, if brand is "Bear" and color is "red", then code is set to 7 (because 4 + 3 = 7). 3. A default constructor that sets brand to "Bear", color to "Base", and code to 0. 4. A getter method and setter method for the code variable. 5. Correctly override the equals method to test if two Paint objects are equal. Make sure to handle null and type checks appropriately. Two Paint objects are equal if all of their instance variables are equal. 6. Override the toString method to return the values of the color, brand and code instance variables in that order, separated by spaces.

Please answer the following question regarding java: You are writing a program to handle applications for student employment at a CS department. When a new application comes in, an object of type Student is created to represent the student applying. When a new employment position becomes available, the job is offered to the student with the highest GPA. If that person declines, their object is removed from the system and the student with the next-highest GPA is offered the position, and so on. Which of the following options would be the best data structure to use in this situation? Options: 1 Stack 2 Queue 3 PriorityQueue

Write a java program as shown in the following UML class diagram:(read the details below)

QUESTION 18 Java uses a hybrid typing system: One system for primitives but everything else is an object. True False

// The language is java please do question #9

Writing a Modular Program in Java Summary In this lab, you add the input and output statements to a partially completed Java program. When completed, the user should be able to enter a year, a month, and a day to determine if the date is valid. Valid years are those that are greater than 0, valid months include the values 1 through 12, and valid days include the values 1 through 31. Instructions Notice that variables have been declared for you. Write the simulated housekeeping() method that contains input statements to retrieve a year, a month, and a day from the user. Add statements to the simulated housekeeping()method that convert the String representation of the year, month, and day to ints. Include the output statements in the simulated endOfJob()method. The format of the output is as follows:month/day/year is a valid date. or month/day/year is an invalid date. Execute the program entering the following date: month = 5, day = 32, year =2014Observe the output of this...

Change in java program 2

Constructor overloading is not possible in java.True or False.