55. How many times may an object’s finalize() method be invoked by the garbage collector? An object’s finalize() method may only be invoked once by the garbage collector.
37. What are order of precedence and associativity, and how are they used? Order of precedence determines the order in which operators are evaluated in expressions. Associatity determines whether an …
25. What are wrapped classes? Wrapped classes are classes that allow primitive types to be accessed as objects. 26. Does garbage collection guarantee that a program will not run out …
7. What’s new with the stop(), suspend() and resume() methods in JDK 1.2? The stop(), suspend() and resume() methods have been deprecated in JDK 1.2. 8. Is null a keyword? …
1. What is a transient variable? A transient variable is a variable that may not be serialized. 2. Which containers use a border Layout as their default layout? The Window, …
97. Difference between Swing and Awt? AWT are heavy-weight componenets. Swings are light-weight components. Hence swing works faster than AWT.
91. Can a public class MyClass be defined in a source file named YourClass.java? No. The source file name, if it contains a public class, must be the same as …
85. Is delete a keyword in Java? No. delete is not a keyword in Java. Java does not make use of explicit destructors the way C++ does. 86. Is exit …
79. What is the catch or declare rule for method declarations? If a checked exception may be thrown within the body of a method, the method must either catch the …
73. What are synchronized methods and synchronized statements? Synchronized methods are methods that are used to control access to an object. A thread only executes a synchronized method after it …
