We have two methods to create methods the threads.
1. Implementing runnable interface
2. Extending to thread class and overriding run method.
Among these two which one is better and why?
Please explain me in detail.
I have a class which is abstract which contains only the
abstract methods. This is similar to an interface. Then, if
i have given a choice to choose one of them. Which one i
have to choose and why?
Q1.A. Write note on “The class path Environment Variable”?
B. Which are different kinds of source code?
Q2.A. How to create an interface?
B. Why convert an applet to an application?
Q3.A. How to use Media tracker Class.
B. How to use string tokenizer class.
Q4 A. Explain the overview of UDP messaging.
B. Difference between SQL Exception class and SQL
Warning class.
Q5. A. How to create com object in Java?
B. Write short notes on “The properties class”
Q6. A. When object is created and destroyed?
B. Explain the JDB in depth & command line.
C. Write short notes on Web Sites.
In Inheritence concept, i have a static method in super
class and i am inheriting that class to one sub class.in
that case the static method is inherited to sub class or
not????
How can we handle runtime exceptions? write one sample
program? Can we write runtime exceptions beside the throws
key word? if yes write sample program?
Draw a UML class diagram for the code fragment given below:
public class StringApplet extends Applet {
private Label sampleString;
private Button showTheString;
private ButtonHandler bHandler;
private FlowLayout layout;
public StringApplet() {
sampleString = new Label(" ");
showTheString = new Button (" Show the String");
bHandler = new ButtonHandler();
layout = new FlowLayout();
showTheString.addActionListener(bHandler);
setLayout(layout);
add(sampleString);
add(showTheString);
}
class ButtonHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {
samplestring.setText("Good Morning");
}
}
}
Note: The methods need not be indicated on the diagram.
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