Analyze the code snippet below:package package1;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.MalformedURLException;import java.net.URL;public class WebPageTextReader {public static void main(String[] args) {try {URL url = new URL("http://eve.kean.edu/~ykumar/MyPage.html");// read text returned by serverBufferedReader in = new BufferedReader(newInputStreamReader(url.openStream()));String line;while ((line = in.readLine()) != null) {//System.out.println(line);double d = Double.parseDouble(line);System.out.println(d);}in.close();}catch (MalformedURLException e) {System.out.println("Malformed URL: " + e.getMessage());}catch (IOException e) {System.out.println("I/O Error: " + e.getMessage());}}} Answer the following questions:2.1. How many classes are involved in this code? What are they?2.2. How many objects of these classes are created in this code? (Hint: look for a new operator)2.3. What do you think this program does?

Question
Asked Nov 6, 2019
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Analyze the code snippet below:

package package1;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
public class WebPageTextReader {
public static void main(String[] args) {
try {
URL url = new URL("http://eve.kean.edu/~ykumar/MyPage.html");
// read text returned by server
BufferedReader in = new BufferedReader(new
InputStreamReader(url.openStream()));

String line;
while ((line = in.readLine()) != null) {
//System.out.println(line);
double d = Double.parseDouble(line);
System.out.println(d);
}
in.close();

}
catch (MalformedURLException e) {
System.out.println("Malformed URL: " + e.getMessage());
}
catch (IOException e) {
System.out.println("I/O Error: " + e.getMessage());
}
}
}

 

Answer the following questions:
2.1. How many classes are involved in this code? What are they?

2.2. How many objects of these classes are created in this code? (Hint: look for a new operator)

2.3. What do you think this program does? 

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Expert Answer

Step 1

There is only one class involved in this code.

The class name is: WebPageTextReader.

Explanation:

After the class keyword whatever name or a valid identifier comes in considered as class name.

Code line where class name lies:

public class WebPageTextReader 

In this above line WebPageTextReader comes after the class keyword. Hence, it is class name.

Step 2

There is only one object created in this code.

Object: url

Explanation:

The object is an instance of any class. The new operator is used to create an object in java.

Syntax to create object:

Class_name object_name= new Class_name();

Code line where object lies:

URL url = new URL("http://eve.kean.edu/~ykuma...

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Tagged in

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Computer Science

Java

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