Most are wireless routers, meaning converged devices that include a WAP,router<span>, and often an </span>Ethernet switch<span> in the same device.</span>
This would be copy and paste.
When you select a text, you can use your keys CTRL and C to copy that same selected text. After this, you can use the paste feature by selecting CTRL and V. Doing this, your selected text will be copied and pasted to a certain location.
You have to ask you teacher to show you which ones you got wrong and the answers to them.
Answer:
The correct answer for the given question is "The program has a runtime NullPointerException because test is null while executing test.x"
Explanation:
In this code their is run time exception will occur in Main method i.e "java.lang.NullPointerException "because the object of the Test class i.e test will initialized by "null" .So on executing the statement test.x it gives an Runtime Exception.The "NullPointerException" can occur if we assign the object to the "null" value that why it produce an java.lang.NullPointerException