Write a JAVA PROGRAM to create a user defined exception class. In this, a constructor of InvalidGradeException accepts a string as an argument. This string is passed to constructor of parent class Exception using the super () method. Also the constructor of Exception class can be called without using a parameter and calling super () method is not mandatory. WRITE JAVA PROGRAM only, and give screenshot of sample run
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Write a JAVA PROGRAM to create a user defined exception class. In this, a constructor of InvalidGradeException accepts a string as an argument. This string is passed to constructor of parent class Exception using the super () method. Also the constructor of Exception class can be called without using a parameter and calling super () method is not mandatory.
WRITE JAVA PROGRAM only, and give screenshot of sample run
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- Let us assume that there is a catch handler that perfectly fits the kind of exception object being thrown. What are the circumstances in which exception objects of that type could be treated differently than they normally would be?What is exception propagation? Give an example of a class that contains at least two methods, in which one method calls another. Ensure that the subordinate method will call a predefined Java method that can throw a checked exception. The subordinate method should not catch the exception. Explain how exception propagation will occur in your example.Let's say there is a catch handler that exactly matches the exception object type. What are the conditions in which exception objects of that type could be handled differently?
- a) Distinguish between a stub and skeleton in Remote Method Invocation (RMI) implementation, outlining at least three functionalities that each partakes when invoked. b) Exception handling is a requirement that any developer needs to put into consideration whenever there is any code he/she writes bound to throw an exception. Describe the four components that could be used to catch and handle an exception, and using Java code snippets, write code that will show all the four components and three exception objects relevant to the chosen scenario caught in practice.Write a Java program that inputs a list of integer values in the range of -100 to 100from the keyboard and computes the sum of the squares of the input values. Thisprogram must use exception handling to ensure that the input values are in range andare legal integers, to handle the error of the sum of the squares becoming larger thana standard Integer variable can store, and to detect end-of-file and use it to cause theoutput of the result. In the case of overflow of the sum, an error message must be printed and the program terminated.JAVA Given a main program that searches for the ID or the name of a student from a text file, complete the findID() and the findName() methods that return the corresponding information of a student. Then, insert a try/catch statement in main() to catch any exceptions thrown by findID() or findName(), and output the exception message. Each line in the text file contains the name and the ID of a student, separated by a space. Method findID() takes two parameters, a student's name and a Scanner object containing the text file's contents. Method findID() returns the ID associated with the student's name if the name is in the file, otherwise the method throws an Exception object with the message "Student ID not found for studentName", where studentName is the name of the student. Method findName() takes two parameters, a student's ID and a Scanner object containing the text file's contents. Method findName() returns the name associated with the student's ID if the ID is in the file,…
- باستخدام جافا Write a program that allows the user to compute the subtracted value afterthe subtraction of two integer values. The subtraction value of x - y isstored in z. Catch any exception thrown and allow the user to enter newvalues.Complete the following Java program by typing in the missing statements in the space provided. This program inputs a value/s from user, and displays the result of some operation. If the operation generated an exception / error, it is handled by the user defined exception class. The main method in the application class is declared to throw a user-defined exception which will take care of the exception. import // for input from keyboard public class MyExceptionApp { public static void main( ) throws MyDivByZeroException { Scanner kb = System.out.println("Enter two numbers for division : "); double n1 = kb.nextDouble(); double n2 = kb.nextDouble(); try{ if( n2 == 0 ) throw else System.out.println("Answer = " + n1/n2); } catch ( e){ System.out.println("Exception caught : " + e); }…Answer the following questions based on your knowledge of exception handling: Why should you use exception handler in a java program? “Introducing exception handler in a program is not always good” – Explain this statement with an example. Rewrite the following inefficient java code snippet to handle the runtime exception without using the try-catch.
- Answer the following questions based on your knowledge of java exception and java text and binary I/Os: Java exception can be handled locally using try-catch block or can be thrown to the calling When should you prefer to throw an exception to the calling method instead of using try-catch? Is it possible to write a program to read from a text file without handling the exception? Why should a programmer consider binary I/O instead of text I/O? Suppose that you are implementing a program to write a string “সিএিই-110” in a binary file. Java provides you three different methods – writeBytes(String), writeChars(String), and writeUTF(String). How many bytes will be written by each of those method for the give string? Why should not you consider the writeBytes(String) method in this case?Create a class Int in oop c++ that contain an integer variable.Overload the following integer arithmetic operators (+, -, *, /), so that they operate an object of type Int. Ifthe result of any such operation exceeds the normal range of int from-32768 to 32767 or in divisionoperation if the denominator is less than 1, throw an exception including error message and error codeencapsulated in exception class object. In relevant catch properly show the error message and error codefollowed by termination of program.Q3(a). Explain the purpose of exception handling by taking one of the following scenarios. b. Write a piece of Java code that illustrates how you handle the scenario selected in Q3(a)” Scenario 1. Users enter values that are not included in a predefined list.Scenario 2. A potentially corrupt file could be uploaded to your program.Scenario 3. A database query returns some null value.Scenario 4. A remote method invocation returns null value