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Give the example of Using a class from the class library ?
You use the java.net.URL class only like you'd use any other class along with these methods in which happens to be named java.net.URL. For example, public class URLSplitter {
public static void main(String[] args) { for (int i = 0; i < args.length; i++) { try { java.net.URL u = new java.net.URL(args[i]); System.out.println("Protocol: " + u.getProtocol()); System.out.println("Host: " + u.getHost()); System.out.println("Port: " + u.getPort()); System.out.println("File: " + u.getFile()); System.out.println("Ref: " + u.getRef()); } catch (java.net.MalformedURLException ex) { System.err.println(args[i] + " is not a valid URL"); } }
}
}Here's the output: $ java URLSplitter https://www.poly.eduProtocol: httpHost: www.poly.eduPort: -1File: /Ref: null
How many JSP scripting elements and what are they? Ans) Three scripting language elements are there: a) declarations, b) scriptlets, c) expressions.
Ask1. Storing the Array: Write an application that uses an Array to store 10messages of type String. You will store this Array with 10 messages of your choosing. For example, a mes
Question: (a) (i) Explain the concept of inheritance. Illustrate your answer with a suitable Java example. (ii) Java does not support multiple inheritance but does provide
Converting Strings to Numeric Primitive Data Types To convert a string which is containing digits to a primitive data type, wrapper classes can help. parseXxx method can be u
What is an Applets? Applets: These are small java programs. They can send from one to another computer over internet by using Applet Viewer which supports java. Applets
Question 1 Describe any five buzz words in Java Question 2 Describe exception classes and also explain common exceptions in java Question 3 Describe primitive and
Annotation or Attribute oriented programming There are two types of code generation processes. Passive code generation: is template driven . Input process are used in mo
What should be public? What should be private? As a rule of thumb: Classes are public. Fields are private. Constructors are public. Getter and setter methods
logical operators
Explain Choosing Font Faces and Sizes in java AWT packages? Choosing a font face is simple. First you create a new Font object. Then you call g.setFont(Font f). To instantiate
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