What causes SQL exception? How it can be handled? Explain with example. An SQLException in Java is thrown when something goes wrong with database access using JDBC (Java Database Connectivity). 🔥 Common causes include…
What is the use of action command in event handling? Explain with example. In Java's event handling model , especially with buttons or menu items , the action command is a String identifier associated with an ActionEve…
What are layout managers? Explain Gridbag layout with suitable example. In Java AWT and Swing, Layout Managers are objects that control the positioning and sizing of components (like buttons, text fields, etc.) inside a…
Write a java program that writes objects of Employee class in the file named emp.doc. Create Employee class as of your interest. Create an Employee class (with attributes of your choice), Serialize and write its objects to a file named emp.doc . ✅ 1. Employee.java import…
Discuss various scopes of JSP objects briefly. Create a HTML file with principal, time and rate. Then create a JSP file that reads values from the HTML form, calculates simple interest and displays it JSP (JavaServer Pages) has four types of scopes that determine how long an object is available and where it can be accessed: page scope Lifetim…
Explain the components of data warehouse. What are the applications of data mining in eGovernance in the context of Nepal. A data warehouse is a centralized repository that integrates data from multiple sources for analytical processing and decision-making. Here's a b…
What are the disadvantages of shift reduce parsin perform shift reduce parsing of string w=(x-x)-(x/x) for grammar E=E-E/ E/E / (E) / x Shift-reduce parsing faces several limitations despite being efficient for certain grammars. Here's an analysis of its disadvantages and a step-b…