Software Programming : Java Programming QUESTIONS AND ANSWERS :: part2 : 11 to 15
Following Software Programming language Entrance Multiple choice objective type questions and answers will help you in Software Programming 2024 examinations :
11.What is garbage collection in the context of Java? |
| The operating system periodically deletes all the java files available on the system. |
| Any package imported in a program and not used is automatically deleted. |
| When all references to an object are gone, the memory used by the object is automatically reclaimed. |
| The JVM checks the output of any Java program and deletes anything that doesn't make sense. |
| Janitors working for Sun Micro Systems are required to throw away any Microsoft documentation found in the employees' offices. |
12.Which of the following is TRUE? #18. Which of the following is TRUE? |
| In java, an instance field declared public generates a compilation error. |
| int is the name of a class available in the package java.lang |
| Instance variable names may only contain letters and digits. |
| A class has always a constructor (possibly automatically supplied by the java compiler). |
| The more comments in a program, the faster the program runs. |
13.Consider, public class MyClass { public MyClass(){/*code*/} // more code... } To instantiate MyClass, you would write? |
| MyClass mc = new MyClass(); |
| MyClass mc = MyClass(); |
| MyClass mc = MyClass; |
| MyClass mc = new MyClass; |
| The constructor of MyClass should be defined as, public void MyClass(){/*code*/}. |
14.All exception types are subclasses of the built-in class |
| Exception |
| RuntimeException |
| Error |
| Throwable |
| None of the above. |
More Java Programming QUESTIONS AND ANSWERS available in next pages
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