Which two are valid constructors for Thread? 1. Thread(Runnable r, String name) 2. Thread() 3. Thread(int priority) 4. Thread(Runnable r, ThreadGroup g) 5. Thread(Runnable r, int priority)

I would implement a LRU cache using only JDK classes by...

What is the output of the following program? import java.lang.reflect.Method; class TestImpl { public void method() {} public static void main(String[] args) { Method method = TestImpl.class.getMethod("method", null); System.out.println(method.getName()); } }

Which code fragments correctly create and initialize a static array of int elements?

True or false: Lambdas allow you to change single instance's method logic

Which of the following are not a valid declarations?

What will below method return? public foo(){ int x = 5; return x; }

How can we use the class or jar files kept on the network path, within our projects?

What will be the output of the program? public class Foo { public static void main(String[] args) { try { return; } finally { System.out.println( "Finally" ); } } }

package test; class Test { } ---------------- package test; class SubTest extends Test{ } Does this code compile without errors if the classes are in separate files?

Reflection mechanism allows to: