import java.sql.*; import java.awt.*; import javax.swing.*; import java.io.*; public class DataBase { String system; String systempass; Connection con; Statement stm; ResultSet rs; int i=0,k=0,l=0,p=0,y=0; int i1=0,k1=0,l1=0,p1=0,y1=0; int i3=0,k3=0,l3=0,p3=0; int i4=0,k4=0,l4=0,p4=0,y4=0,q4=0,w4=0; RowCount1 f=new RowCount1(); int g=5+f.call(); int g1=5+f.call1(); int g3=5+f.call3(); int g4=5+f.call4(); Object array[][] = new Object[g][10]; Object array2[][] = new Object[g1][10]; Object array3[][] = new Object[g3][10]; Object array4[][] = new Object[g4][10]; public DataBase() throws Exception { try{ FileInputStream file3=new FileInputStream("username.txt"); byte []by12= new byte[50]; file3.read(by12); system= new String(by12,0,50); FileInputStream file4=new FileInputStream("password.txt"); byte []by22= new byte[50]; file4.read(by22); systempass= new String(by22,0,50); } catch(IOException io){ } //System.out.println(g); //array[0] = new Object[g]; //array[1] = new Object[g]; data(); data2(); data3(); data4(); } public void data() throws Exception { try {Class.forName("oracle.jdbc.driver.OracleDriver"); con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe",system,systempass); stm= con.createStatement(); rs= stm.executeQuery("SELECT BOOK_ID,BOOK_NAME,AUTHOR,PUBLISHER,QUANTITY FROM book "); while(rs.next()) { array[i++][0]=rs.getObject("BOOK_ID"); array[k++][1]=rs.getObject("BOOK_NAME"); array[l++][2]=rs.getObject("AUTHOR"); array[p++][3]=rs.getObject("PUBLISHER"); array[y++][4]=rs.getObject("QUANTITY"); } con.close(); System.out.println("AVSK"); } catch(SQLException e) { JOptionPane.showMessageDialog((Component) null,e,"Error",JOptionPane.ERROR_MESSAGE); System.out.println("Unable to load Driver"); } } public void data2() throws Exception { try {Class.forName("oracle.jdbc.driver.OracleDriver"); con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe",system,systempass); stm= con.createStatement(); rs= stm.executeQuery("SELECT USER_ID,USER_NAME,USER_PASSWORD,USER_PHONENO,USER_EMAILID FROM student1 "); while(rs.next()) { array2[i1++][0]=rs.getObject("USER_ID"); array2[k1++][1]=rs.getObject("USER_NAME"); array2[l1++][2]=rs.getObject("USER_PASSWORD"); array2[p1++][3]=rs.getObject("USER_PHONENO"); array2[y1++][4]=rs.getObject("USER_EMAILID"); } con.close(); System.out.println("AVSK"); } catch(SQLException e) { JOptionPane.showMessageDialog((Component) null,e,"Error",JOptionPane.ERROR_MESSAGE); System.out.println("Unable to load Driver"); } } public void data3() throws Exception { try {Class.forName("oracle.jdbc.driver.OracleDriver"); con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe",system,systempass); stm= con.createStatement(); rs= stm.executeQuery("SELECT BOOK_ID1,USER_ID1,ISSUE_DATE1,RETURN_DATE1 FROM issue_book "); while(rs.next()) { array3[i3++][0]=rs.getObject("BOOK_ID1"); array3[k3++][1]=rs.getObject("USER_ID1"); array3[l3++][2]=rs.getObject("ISSUE_DATE1"); array3[p3++][3]=rs.getObject("RETURN_DATE1"); } con.close(); System.out.println("AVSK"); } catch(SQLException e) { JOptionPane.showMessageDialog((Component) null,e,"Error",JOptionPane.ERROR_MESSAGE); System.out.println("Unable to load Driver"); } } public void data4() throws Exception { try {Class.forName("oracle.jdbc.driver.OracleDriver"); con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe",system,systempass); stm= con.createStatement(); rs= stm.executeQuery("SELECT NAMEL,USERIDL,PASSWORDL,EMAILIDL,ADDRESSL,CITYL,CONTACTNOL FROM librarian "); while(rs.next()) { array4[i4++][0]=rs.getObject("NAMEL"); array4[k4++][1]=rs.getObject("USERIDL"); array4[l4++][2]=rs.getObject("PASSWORDL"); array4[p4++][3]=rs.getObject("EMAILIDL"); array4[y4++][4]=rs.getObject("ADDRESSL"); array4[q4++][5]=rs.getObject("CITYL"); array4[w4++][6]=rs.getObject("CONTACTNOL"); } con.close(); System.out.println("AVSK"); } catch(SQLException e) { JOptionPane.showMessageDialog((Component) null,e,"Error",JOptionPane.ERROR_MESSAGE); System.out.println("Unable to load Driver"); } } public static void main(String []args) throws Exception { new DataBase(); } }