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Topic :: Java





Java Interview Questions
Questions Answers Views Company eMail

how we can say java is platform independent, while we require JVM for that particular Operating System?

Honeywell, TCS,

3 8707

java is called platform independent but JVM is required for same operating system why?

1 3943

How would you directly trigger javascript in a test?

eBay,

1 1965

why java is called platform independent?

1 3479

how to run java script program

1 4181

What is the use of collections in java? How it is implemented in real time applications?

2 12730

on c,c++.core java

HCL,

1 2443

e=1+x/!+x2/2!+x3/3!+.... in javascript

1999

WHAT IS THE SCOPE FOR COREJAVA...? IS JAVA ONLY CORE JAVA ?

2 9844

difference between jsp and java script?

3 5909

What is the difference between Java Bean and Java Class.?

2 5593

String Reverse in Java...!

5 9178

as we know that java is a platform independent language, but we need jvm for the same operating system why?

1 2019

how can i take the inputs from users in java program?

Wipro,

7 11782

what about jdb and javadoc by example ?

TCS,

1 2189




Related Topics


Un-Answered Questions { Java }

i need the source code for opening a word document in java

2290


HI ,MY QUALIFICATION B.A. + PGDCA AND TRAINED ON JAVA . NOW I WANT TO KNOW TO GET JOB SOON WHICH COURSE I HAVE TO LEARN ?

2137


Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2657


plzzzzzzzzz xplain this code import java.awt.*; import java.util.Date; import java.awt.event.*; import java.awt.MenuItem.*; import java.sql.*; import sun.jdbc.odbc.*; import java.io.*; public class NewConnection extends Frame implements ActionListener { Label l1,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12,l13; Button exit,save,bnext,top,prev,botm,ad,edit; TextField txtSvNo,txtConsNo,txtSvDt,txtConsName,txtAddr1,txtPhNo,txtCy lQty,txtCylDep,txtRegDep,txtRegQty,adr2,adr3,tot,stnry,rmrk; Date date=new Date(); String ConsName; String Addr1; public static void main(String sr[]) { new NewConnection().setVisible(true); } public NewConnection() { super("New Connection"); Statement stmt; ResultSet rs; //PreparedStatement pst; Connection con; try { Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver"); con=DriverManager.getConnection("jdbc:odbc:Agency"); if (con!=null); System.out.println ("connected"); stmt =con.createStatement (); } catch(Exception e1) { System.out.println (e1); } setSize(1280,800); setBackground(Color.lightGray); setLayout(null); l1=new Label("SV NO"); l1.setBounds(260,60,90,30); l1.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l1.setAlignment(Label.CENTER); add(l1); l2=new Label("CONSMR NO"); l2.setBounds(30,60,90,30); l2.setFont(new Font("TimesRoman",Font.PLAIN,15)); l2.setAlignment(Label.CENTER); add(l2); l3=new Label("SV DATE"); l3.setBounds(520,60,90,30); l3.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l3.setAlignment(Label.CENTER); add(l3); l4=new Label("NAME"); l4.setBounds(30,150,45,30); l4.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l4.setAlignment(Label.CENTER); add(l4); l5=new Label("ADRS"); l5.setBounds(30,220,45,30); l5.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l5.setAlignment(Label.CENTER); add(l5); l6=new Label("PH NO"); l6.setBounds(500,150,45,30); l6.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l6.setAlignment(Label.CENTER); add(l6); l7=new Label("CYLDR"); l7.setBounds(30,390,55,30); l7.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l7.setAlignment(Label.CENTER); add(l7); l8=new Label("DEPOSIT"); l8.setBounds(320,390,65,30); l8.setFont(new Font("TimesRoman",Font.PLAIN,15)); l8.setAlignment(Label.CENTER); add(l8); l9=new Label("DEPOSIT"); l9.setBounds(320,440,65,30); l9.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l9.setAlignment(Label.CENTER); add(l9); l10=new Label("RGLTR"); l10.setBounds(30,440,55,30); l10.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l10.setAlignment(Label.CENTER); add(l10); l11=new Label("TOTAL"); l11.setBounds(320,480,55,30); l11.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l11.setAlignment(Label.CENTER); add(l11); l12=new Label("Cur.Statn.NO."); l12.setBounds(290,550,85,30); l12.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l12.setAlignment(Label.CENTER); add(l12); l13=new Label("REMARKS"); l13.setBounds (30,630,85,30); l13.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l13.setAlignment (Label.CENTER); add(l13); txtSvNo=new TextField(); txtSvNo.setBounds(375,60,80,30); txtSvNo.setBackground(Color.white); add(txtSvNo); txtConsNo=new TextField(); txtConsNo.setBounds(130,60,80,30); txtConsNo.setBackground(Color.white); add(txtConsNo); txtSvDt=new TextField(); txtSvDt.setBounds(635,60,80,30); txtSvDt.setBackground(Color.white); add(txtSvDt); txtConsName=new TextField(); txtConsName.setBounds(100,150,200,30); txtConsName.setBackground(Color.white); add(txtConsName); txtAddr1=new TextField(); txtAddr1.setBounds(100,220,350,30); txtAddr1.setBackground(Color.white); add(txtAddr1); adr2=new TextField(); adr2.setBounds(100,250,350,30); adr2.setBackground(Color.white); add(adr2); adr3=new TextField(); adr3.setBounds(100,280,350,30); adr3.setBackground(Color.white); add(adr3); txtPhNo=new TextField(); txtPhNo.setBounds(570,150,150,30); txtPhNo.setBackground(Color.white); add(txtPhNo); txtCylQty=new TextField(); txtCylQty.setBounds(100,390,60,30); txtCylQty.setBackground(Color.white); add(txtCylQty); txtCylDep=new TextField(); txtCylDep.setBounds(410,390,60,30); txtCylDep.setBackground(Color.white); add(txtCylDep); txtRegDep=new TextField(); txtRegDep.setBounds(410,440,60,30); txtRegDep.setBackground(Color.white); add(txtRegDep); txtRegQty=new TextField(); txtRegQty.setBounds(100,440,60,30); txtRegQty.setBackground(Color.white); add(txtRegQty); tot=new TextField(); tot.setBounds(410,490,60,30); tot.setBackground(Color.white); add(tot); stnry=new TextField(); stnry.setBounds(410,550,60,30); stnry.setBackground(Color.white); add(stnry); rmrk=new TextField(); rmrk.setBounds(140,630,600,30); rmrk.setBackground(Color.white); add(rmrk); exit=new Button("EXIT"); exit.setBackground(Color.orange); exit.setBounds(760,700,40,40); exit.addActionListener(this); add(exit); save=new Button("SAVE"); save.setBackground(Color.orange); save.setBounds(715,700,40,40); save.addActionListener(this); add(save); bnext=new Button("NEXT"); bnext.setBackground(Color.orange); bnext.setBounds(90,700,40,40); bnext.addActionListener(this); add(bnext); top=new Button("TOP"); top.setBackground(Color.orange); top.setBounds(0,700,40,40); top.addActionListener(this); add(top); prev=new Button("PREV"); prev.setBackground(Color.orange); prev.setBounds(45,700,40,40); prev.addActionListener(this); add(prev); botm=new Button("BOTM"); botm.setBackground (Color.orange); botm.setBounds (135,700,40,40); botm.addActionListener (this); add(botm); ad=new Button("ADD"); ad.setBackground (Color.orange); ad.setBounds (300,700,40,40); ad.addActionListener (this); add(ad); edit=new Button("EDIT"); edit.setBackground (Color.orange); edit.setBounds (345,700,40,40); edit.addActionListener (this); add(edit); } public void actionPerformed(ActionEvent e) { if(e.getSource()==exit) { this.dispose(); System.exit(0); } if(e.getSource()==save) { try { Connection con=DriverManager.getConnection("jdbc:odbc:Agency"); PreparedStatement pst=con.prepareStatement("INSERT INTO NewCon values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)"); pst.setInt (1,Integer.parseInt(txtConsNo.getText())); pst.setInt (2,Integer.parseInt(txtSvNo.getText())); pst.setString (3,txtSvDt.getText()); pst.setString (4,txtConsName.getText()); pst.setInt(5,Integer.parseInt (txtPhNo.getText())); pst.setString(6,txtAddr1.getText()); pst.setString(7,adr2.getText()); pst.setString(8,adr3.getText()); pst.setInt(9,Integer.parseInt (txtCylQty.getText())); pst.setInt(10,Integer.parseInt (txtCylDep.getText())); pst.setInt(11,Integer.parseInt (txtRegQty.getText())); pst.setInt(12,Integer.parseInt (txtRegDep.getText())); pst.setInt(13,Integer.parseInt (tot.getText())); pst.setInt(14,Integer.parseInt (stnry.getText())); pst.setString(15,rmrk.getText()); pst.executeUpdate (); con.close(); } catch(Exception e2) {System.out.println(e2);} } if(e.getSource()==ad) { int newcono=60000,newsvno=10000; System.out.println("entered if body"); try { System.out.println("entered the try:"); Connection con1=DriverManager.getConnection("jdbc:odbc:Agency"); Statement stmt1=con1.createStatement(); ResultSet rs1=stmt1.executeQuery("SELECT Cons_No,Sv_No FROM NewCon "); while(rs1.next()) { //System.out.println(rs1.getInt("Cons_No")); txtConsNo.setText(""+rs1.getInt(1)); txtSvNo.setText(""+rs1.getInt(2)); //newcono=rs1.getInt("Cons_No"); } //rs1.last(); newcono=Integer.parseInt(txtConsNo.getText ()); newsvno=Integer.parseInt(txtSvNo.getText ()); //newcono=rs1.getInt("Cons_No"); System.out.println(newcono); newcono=newcono+1; newsvno=newsvno+1; txtConsNo.setText (""+newcono); txtSvNo.setText(""+newsvno); txtSvDt.setText(""+ date); txtConsName.setText(""); txtAddr1.setText(""); txtPhNo.setText(""); txtCylQty.setText(""); txtCylDep.setText(""); txtRegDep.setText(""); txtRegQty.setText(""); adr2.setText(""); adr3.setText(""); tot.setText(""); stnry.setText(""); rmrk.setText(""); con1.close(); } catch(Exception e4){System.out.println (e4);} } if(e.getSource()==bnext) { try{ Connection con2=DriverManager.getConnection ("jdbc:odbc:Agency"); Statement stmt2=con2.createStatement (); ResultSet rs2=stmt2.executeQuery("SELECT * FROM NewCon "); rs2.next(); { txtConsNo.setText(rs2.getInt(1)+""); txtSvNo.setText (rs2.getInt(2)+""); txtSvDt.setText (rs2.getString(3)+""); txtConsName.setText (rs2.getString(4)+""); txtPhNo.setText (rs2.getInt(5)+""); txtAddr1.setText(rs2.getString(6)+""); adr2.setText (rs2.getString("Address2")+""); adr3.setText (rs2.getString("Address3")+""); txtCylQty.setText (rs2.getInt(9)+""); txtCylDep.setText (rs2.getInt(10)+""); txtRegDep.setText (rs2.getInt(11)+""); txtRegQty.setText (rs2.getInt(12)+""); tot.setText(rs2.getInt (13)+""); stnry.setText(rs2.getInt(14) +""); rmrk.setText(rs2.getString (15)+""); } } catch(Exception e5){} } } }

2208


Bonjour, svp je veut voir comment envoyer un mail en java et comment changer le droit d'accé d'un fichier en java: de lecture en lecture/écriture et merci d'avance ;)

2298


Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2410


There is no strict data types in perl unlike in other high level languages like Java so wouldn't that be a problem if a code in perl is to be a written by a big team of 20+ members ?"

2454


Does Kotlin support primitive datatypes as like in Java?

296


Does Kotlin provide any additional functionalities for standard Java packages or standard Java classes?

232


What are Data classes ? Aren’t they available in Java ?

231


How can you inject java collection in spring?

499


What is the java api?

981


How does java handle integer overflows and underflows?

1102


What do you understand by casting in java language? What are the types of casting?

921


Connecting to iserver volume using idapi classes(java classes) and after connecting to iserver I want to execute the rox on iserver and also want know the status whether that job is succesfully run or not?

1099