1.Which of the following statements is false?

a.There is a variety of concurrent collections implemented in Java.

b.Java programs can have multiple threads of execution, where each thread has its own method-call stack and program counter, allowing it to execute concurrently with other threads. This capability is called multithreading.

c.Java makes concurrency available to you through the language and APIs.

d.Concurrency is a subset of parallelism.

e.Todays multi-core computers have multiple processors that can perform tasks in parallel.

2.

.................. provides the features of a window.

a.JSwing

b.JLabel

c.JWindow

d.JPanel

e.JFrame