Checkboxes:
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
/*<applet code="CheckBoxDemo" width=300 height=300></applet>*/
public class CheckBoxDemo extends Applet implements ItemListener
{
Label l1;
public void init()
{
Checkbox c1=new Checkbox("B.C.A.");
c1.addItemListener(this);
add(c1);
Checkbox c2=new Checkbox("B.B.A.");
c2.addItemListener(this);
add(c2);
Checkbox c3=new Checkbox("B.Com.");
c3.addItemListener(this);
add(c3);
l1=new Label(" ");
add(l1);
}
public void itemStateChanged(ItemEvent ie)
{
Checkbox cb=(Checkbox)ie.getItemSelectable();
l1.setText(cb.getLabel());
}
}
16. How do you set security in applets? using setSecurityManager() method 17. What is a layout manager and what are different types of layout managers available in java AWT? A layout manager is an object that is used to organize components in a container. The different layouts are available are FlowLayout, BorderLayout, CardLayout, GridLayout and GridBagLayout 18. What is JDBC? JDBC is a set of Java API for executing SQL statements. This API consists of a set of classes and interfaces to enable programs to write pure Java Database applications. 19. What are drivers available? a) JDBC-ODBC Bridge driver b) Native API Partly-Java driver c) JDBC-Net Pure Java driver d) Native-Protocol Pure Java driver 20. What is stored procedure? Stored procedure is a group of SQL statements that forms a logical unit and performs a particular task. Stored Procedures are used to encapsulate a set of operations or queries to execute on database. Stored procedures can be compiled and...
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