The Abstract Window Toolkit (AWT) is a set of Java classes that allow the programmer to create a Graphical User Interface (GUI) and accept user input through the keyboard and the mouse. They are heavyweight components of Java Foundation Classes (JFC). The java.awt package contains all classes for creating user interfaces and for painting graphics […]
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File is a collection of bytes stored in secondary storage device i.e. disk. Thus, File handling is used to read, write, append or update a file without directly opening it. Types of File: Text File Binary File Text File contains only textual data. Text files may be saved in either a plain text (.TXT) format
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JDBC Program to Insert a record to database using Forms. import javax.swing.*; import java.awt.*; import java.io.*; import java.awt.event.*; import java.sql.*; class Form extends JFrame { JButton ADD; JPanel panel; JLabel label1,label2,label3,label4,label5; final JTextField text1,text2,text3,text4,text5; Form() { label1 = new JLabel(); label1.setText(“UserID:”); text1 = new JTextField(20); label2 = new JLabel(); label2.setText(“First Name:”); text2 = new JTextField(20);
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JDBC Example to show records on JTable import java.awt.*; import java.sql.*; import java.util.*; import javax.swing.*; import java.awt.event.*; import javax.swing.table.*; public class JTableDatabase { public static void main(String[] args) { Vector columnNames = new Vector(); Vector data = new Vector(); JPanel p=new JPanel(); try { Class.forName(“sun.jdbc.odbc.JdbcOdbcDriver”); Connection con = DriverManager.getConnection(“jdbc:odbc:test”); String sql = “Select * from
Here is a Java swing program to do all database operation (insert/delete/update) import javax.swing.*; import java.awt.*; import java.sql.*; import java.awt.event.*; import java.applet.*; public class JDBCAllinOne implements ActionListener { JLabel lblFname,lblLname,lblAddress,lblSalary,lblf,lbll,lbla,lbls; JLabel lblfVal,lbllVal,lblaVal,lblsVal; JTextField txtFname,txtLname,txtAddress,txtSalary; JButton btnInsert,btnUpdate,btnDelete,btnPrev,btnNext,btnClear; ResultSet rs ; public static void main(String[] args) { JDBCAllinOne obj = new JDBCAllinOne(); obj.createUI(); } private void createUI()
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JDBC or Java Data Base Connectivity – provides an interface to Relational Data Sources JDBC library provides the means for executing SQL statements to access and operate on a relational database JDBC library is implemented in the java.sql package Set of classes and interfaces that provide a uniform API for access to broad range of
Java Program to show Multi Threading class Ta extends Thread { public void run() { for(int i=1; i<=5; i++) { System.out.println(“A thread=” + i); } System.out.println(“Ta is over”); } } class Tb extends Thread { public void run() { for(int j=1; j<=5; j++) { System.out.println(“B thread=” + j); } System.out.println(“Tb is over”); } } class
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Java Program to display Student Marks information using Single Inheritance. import java.io.*; class Student { int rollno; String nm; } class Marks extends Student { int p, c, m, tot; Marks() { try { DataInputStream in=new DataInputStream(System.in); System.out.print(“Enter Roll No:”); rollno=Integer.parseInt(in.readLine()); System.out.print(“Enter Name:”); nm=in.readLine(); System.out.print(“Enter Phy Marks:”); p=Integer.parseInt(in.readLine()); System.out.print(“Enter Che Marks:”); c=Integer.parseInt(in.readLine()); System.out.print(“Enter Maths Marks:”);
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List of Java Programs Java program – Type casting [converting from float to an integer] class Typecast { public static void main(String args[]) { float a=2.3333f; int b=10; int c=(int)a+b; System.out.println(c); } } Java Program – use of all data types. class vari { public static void main(String args[]) { int a=3; String str=”Hello World!”;
An object-oriented, a cross platform programming language. It is used to create stand-alone applications, net based programs and programs for consumer devices. Example : cellular phones, palm pilots Features of Java:- Simple – The Java designers removed a number of complex features that existed in C, such as pointer manipulation, operator overloading etc. Object-Oriented – Everything is
In this tutorials you’ll able to connect database(SQL) using C# asp.net Steps to connect sql server database using c#. net For more details visit at: www.mitindia.in
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