Write a problem to throw an exception

Question

create a class that can have only five instances and should throw an exception if more than 5 is created ?

Munib Butt · Answer

The solution is creating a class similar to a singleton pattern. However, instead of only creating and returning one class, here you would maintain a static counter and return upto 5 instances of the class. After that simply throw an exception.

Jignesh Kumar · Answer

Hey, Please try This one, You can use loop to create instance if you want. class MyClass { static int count = 0; public MyClass() { count++; if (count > 5) { //raise error or here you reached max number of instance creation } } } class Program { static void Main( string [] args) { MyClass obj = new MyClass(); MyClass obj1 = new MyClass(); MyClass obj2 = new MyClass(); MyClass obj3 = new MyClass(); MyClass obj4 = new MyClass(); MyClass obj5 = new MyClass(); MyClass obj6 = new MyClass(); } }

Rajanikant Hawaldar · Answer

Hello Ritendra mall, Refer in C# and Java: class Sample { private static int i = 0; private Sample() { } public static Sample CreateInstance() { if (i { i++; return new Sample(); } else throw new Exception( "Can not create more then 5 instance of this class" ); } } https://stackoverflow.com/questions/1251445/limit-instances-creation-of-a-class https://stackoverflow.com/questions/3399191/write-a-java-class-to-have-only-five-instance-of-it-created https://stackoverflow.com/questions/4322147/how-to-make-class-to-allow-creation-of-3-objects-only

Write a problem to throw an exception

Answers (3)