Java

Switch statements are slower than if - else ladders. ✘ A nested switch case is not possible. ✘ A switch statement without any case is possible. ✘ All of these ✔

TreeSet class ✘ Abstract class ✘ ArrayList class ✘ None of these ✔

It is a subsystem of the JVM that is used to load classes and interfaces. ✘ It is a part of the JVM that loads classes and interfaces. ✘ It is not a part of the JVM, but is used to load classes and interfaces. ✘ None of these ✔

ItemEvent ✘ ActionEvent ✘ FocusEvent ✘ ComponentEvent ✔

getComponent() ✘ getContainerComponent() ✘ getchild() ✘ child() ✔

WindowClosingListener ✘ ContainerListener ✘ ActionListener ✘ ItemListener ✔

It is the last servlet in the chain that provides the output to the web browser. ✘ It is a method in which the output of one servlet is piped into the next servlet. ✘ Both of these ✘ None of these ✔

Statement using SQL ✘ Prepared statement ✘ Both of these ✘ Non-Callable statements ✔

Java deallocates memory automatically. ✘ The 'finalize' method is called before garbage collection. ✘ Garbage collection runs when there is a reference to an object. It runs periodically. ✘ None of these ✔

Value always greater than zero ✘ Value less than zero ✘ Zero ✘ None of these ✔