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Sunday, May 26, 2013

Frame in Java

/**PROGRAM FOR FRAME (WINDOW)**/

import java.lang.*;
import java.awt.*;

class demo extends Frame
{

public static void main(String args[])throws Exception
{
demo d=new demo();

d.setSize(1600,800);

d.setVisible(true);
}
}

Editor in Java

/**EDITOR PROGRAM IN JAVA**/

import java.io.*;
import java.lang.*;
import java.awt.*;
import java.awt.event.*;

public class editor extends Frame implements ActionListener
{
MenuBar mb;
Menu m1,m2,m3,m4,m5;
MenuItem a1,a2,a3,a4,a5,a6,b1,b2,b3,b4,b5,b6,c1,c2,d1,e1,e2;
TextArea t;

editor()
{
t=new TextArea();
mb=new MenuBar();
m1=new Menu("FILE");
a1=new MenuItem("NEW");
a2=new MenuItem("OPEN");
a3=new MenuItem("SAVE");
a4=new MenuItem("SAVE AS");
a5=new MenuItem("PRINT");
a6=new MenuItem("CLOSE");

a1.addActionListener(this);
a2.addActionListener(this);
a3.addActionListener(this);
a4.addActionListener(this);
a5.addActionListener(this);
a6.addActionListener(this);

m2=new Menu("EDIT");
b1=new MenuItem("UNDO");
b2=new MenuItem("CUT");
b3=new MenuItem("COPY");
b4=new MenuItem("PASTE");
b5=new MenuItem("SELECT");
b6=new MenuItem("TIME");

b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
b5.addActionListener(this);
b6.addActionListener(this);

m3=new Menu("FORMAT");
c1=new MenuItem("WORDWRAP");
c2=new MenuItem("FONT");

c1.addActionListener(this);
c2.addActionListener(this);

m4=new Menu("VIEW");
d1=new MenuItem("STATUS BAR");

d1.addActionListener(this);

m5=new Menu("HELP");
e1=new MenuItem("HELP TOPICS");
e2=new MenuItem("ABOUT NOTEPAD");

e1.addActionListener(this);
e2.addActionListener(this);

setLayout(new GridLayout(1,1));

add(t);
mb.add(m1); mb.add(m2); mb.add(m3); mb.add(m4); mb.add(m5);
m1.add(a1); m1.add(a2); m1.add(a3); m1.add(a4); m1.add(a5);m1.add(a6);

m2.add(b1); m2.add(b2); m2.add(b3); m2.add(b4); m2.add(b5);m2.add(b6);

m3.add(c1); m3.add(c2);

m4.add(d1); m5.add(e1); m5.add(e2);

setMenuBar(mb);

}

public void actionPerformed(ActionEvent ae)
{
if(ae.getSource()==a6)
{
System.exit(0);
}

}

public static void main(String args[])
{
editor h= new editor();
h.setTitle("Notepad");
h.setVisible(true);
h.setSize(500,500);
}

}

Mouse handling in Java

/**PROGRAM OF MOUSE HANDLING**/

import java.lang.*;
import java.awt.*;
import java.awt.event.*;

class date1 extends Frame implements ActionListener,AdjustmentListener
{

Button a,b;
Label l1,l2,l3,l4;
TextField t1,t2,t3,t4;
Scrollbar s1,s2,s3;
String g1,g2,g3;
int da,mo,ye;
int z,x,y;

public date1()
{
a=new Button("OK");
b=new Button("EXIT");
l1=new Label("DD");
l2=new Label("MM");
l3=new Label("YY");
l4=new Label("DATE");

t1=new TextField(5);
t2=new TextField(10);
t3=new TextField(5);
t4=new TextField(20);

s1=new Scrollbar(Scrollbar.HORIZONTAL,0,1,1,31);
s2=new Scrollbar(Scrollbar.HORIZONTAL,0,1,1,12);
s3=new Scrollbar(Scrollbar.HORIZONTAL,0,1,1900,2100);

setLayout(new FlowLayout());

add(l1); add(s1); add(t1); add(l2); add(s2); add(t2);
add(l3); add(s3); add(t3);
add(a); add(l4); add(t4); add(b);

a.addActionListener(this);
b.addActionListener(this);

s1.addAdjustmentListener(this);
s2.addAdjustmentListener(this);
s3.addAdjustmentListener(this);

}

public void actionPerformed(ActionEvent ae)
{

if(ae.getSource()==a)
{

g1=t1.getText();

g2=t2.getText();

g3=t3.getText();

t4.setText(g1+"/"+g2+"/"+g3);
}

if(ae.getSource()==b)
{
System.exit(0);
}
}

public void adjustmentValueChanged(AdjustmentEvent be)
{

da=s1.getValue();
t1.setText(" "+da);

mo=s2.getValue();
t2.setText(" "+mo);

ye=s3.getValue();
t3.setText(" "+ye);

}

public static void main(String args[])throws Exception
{
date1 q=new date1();

q.setSize(400,400);
q.setVisible(true);
}

}

Date In Java

/***PROGRAM FOR DATE*/

import java.io.*;

class date
{
int dd,mm,yy;

public void getdate()throws Exception
{
int flag=0;
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

while(flag==0)
{

try
{
System.out.println("ENTER THE DATE:");
dd=Integer.parseInt(br.readLine());
mm=Integer.parseInt(br.readLine());
yy=Integer.parseInt(br.readLine());

flag=1;
}

catch(NumberFormatException ne)
{
System.out.println("Exception occured: INVALID NUMBER" +ne);
}
};
}

public void putdate()
{
System.out.println(dd+"/"+mm+"/"+yy);
}

public static void main(String args[])throws Exception
{
date d=new date();

d.getdate();
d.putdate();
}
}

Calculator in Java

/**JAVA PROGRAM FOR CALCULATOR**/

import java.lang.*;
import java.awt.*;
import java.awt.event.*;

class calc extends Frame implements ActionListener
{
int val1,val2,res,flag;
TextField t1;
Button b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15,b16,b17;

public calc()
{
b0=new Button("0");
b1=new Button("1");
b2=new Button("2");
b3=new Button("3");
b4=new Button("4");
b5=new Button("5");
b6=new Button("6");
b7=new Button("7");
b8=new Button("8");
b9=new Button("9");
b10=new Button("+");
b11=new Button("-");
b12=new Button("*");
b13=new Button("/");
b14=new Button(".");
b15=new Button("=");
b16=new Button("OFF");
b17=new Button("CLEAR");

t1=new TextField(5);

setLayout(new FlowLayout());

add(t1); add(b17); add(b16); add(b1); add(b2); add(b3); add(b10); add(b4); add(b5); add(b6);
add(b11); add(b7); add(b8); add(b9); add(b12); add(b0); add(b14); add(b15); add(b13);

b0.addActionListener(this);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
b5.addActionListener(this);
b6.addActionListener(this);
b7.addActionListener(this);
b8.addActionListener(this);
b9.addActionListener(this);
b10.addActionListener(this);
b11.addActionListener(this);
b12.addActionListener(this);
b13.addActionListener(this);
b14.addActionListener(this);
b15.addActionListener(this);
b16.addActionListener(this);
b17.addActionListener(this);

}

public void actionPerformed(ActionEvent ae)
{

if(ae.getSource()==b0)
{
t1.setText(t1.getText()+"0");
}

if(ae.getSource()==b1)
{
t1.setText(t1.getText()+"1");
}

if(ae.getSource()==b2)
{
t1.setText(t1.getText()+"2");
}

if(ae.getSource()==b3)
{
t1.setText(t1.getText()+"3");
}

if(ae.getSource()==b4)
{
t1.setText(t1.getText()+"4");
}

if(ae.getSource()==b5)
{
t1.setText(t1.getText()+"5");
}

if(ae.getSource()==b6)
{
t1.setText(t1.getText()+"6");
}

if(ae.getSource()==b7)
{
t1.setText(t1.getText()+"7");
}

if(ae.getSource()==b8)
{
t1.setText(t1.getText()+"8");
}

if(ae.getSource()==b9)
{
t1.setText(t1.getText()+"9");
}

if(ae.getSource()==b10)
{
val1=Integer.parseInt(t1.getText());
t1.setText("");
flag=1;
}

if(ae.getSource()==b11)
{
val1=Integer.parseInt(t1.getText());
t1.setText("");
flag=2;
}

if(ae.getSource()==b12)
{
val1=Integer.parseInt(t1.getText());
t1.setText("");
flag=3;
}

if(ae.getSource()==b13)
{
val1=Integer.parseInt(t1.getText());
t1.setText("");
flag=4;
}

if(ae.getSource()==b17)
{
t1.setText("");
}

if(ae.getSource()==b16)
{

System.exit(0);
}

if(ae.getSource()==b14)
{
val1=Integer.parseInt(t1.getText());
t1.setText(val1+".");

}

if(ae.getSource()==b15)
{
val2=Integer.parseInt(t1.getText());

switch(flag)
{

case 1: res=val1+val2;
break;
case 2: res=val1-val2;
break;

case 3: res=val1*val2;
break;

case 4: res=val1/val2;
break;
}

t1.setText(""+res);
}

}

public static void main(String args[])
{

calc y=new calc();

y.setSize(100,200);
y.setVisible(true);
}
}

Action Listener

/**ACTION LISTENER IN JAVA EXAMPLE**/

import java.lang.*;
import java.awt.*;
import java.awt.event.*;

class bb extends Frame implements ActionListener
{

Button b;
TextField t;

public bb()
{
b=new Button("CLICK:");
t=new TextField(20);

setLayout(new FlowLayout());

add(b); add(t);

b.addActionListener(this);
}

public void actionPerformed(ActionEvent ae)
{
if(ae.getSource()==b)
{
Frame f=new Frame();
{
f.setSize(50,50);
f.setVisible(true);
}
}
}

public static void main(String args[])
{

bb a=new bb();

a.setSize(400,600);
a.setVisible(true);

}
}

Addition Of Numbers

/*Example of class for addition of the two numbers*/

import java.awt.*;
import java.awt.event.*;
class as extends Frame implements ActionListener
{
TextField t1,t2,t3;
Button b1,b2,b3;

public as()
{
t1=new TextField(10);
t2=new TextField(10);
t3=new TextField(10);
b1=new Button("ADD");
b2=new Button("SUB");
b3=new Button("EXIT");

setLayout(new FlowLayout());

add(b1); add(t1); add(b2); add(t2); add(t3); add(b3);

b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);

}

public static void main(String args[])throws Exception
{

as a=new as();

a.setSize(200,300);
a.setVisible(true);
}

public void actionPerformed(ActionEvent ae)
{

int val1=Integer.parseInt(t1.getText());
int val2=Integer.parseInt(t2.getText());
int res;

if(ae.getSource()==b1)
{
res=val1+val2;
t3.setText(" "+res);
}

if(ae.getSource()==b2)
{
res=val1-val2;
t3.setText(" "+res);
}

if(ae.getSource()==b3)
{
System.exit(0);
}
}
}

Simple Applet Program

Following is a Simple applet program inn java.

import java.awt.*;
import java.applet.*;

public class app2 extends Applet
{
public void paint(Graphics g)
{
g.drawString("MY FIRST APPLET",30,30);
}
}

Applet in Java

HTML FILE CODE:

Create a file name sample.html and write the following code in it.

<applet code="app1"width=600 height=600></applet>

Then create a java file and write the following code in it.

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

public class app1 extends Applet implements ActionListener

{

Button b;

TextField t;

public void Init()

{

b=new Button("CLICK:");

t=new TextField(20);

setLayout(new FlowLayout());

add(b); add(t);

b.addActionListener(this);

}

public void actionPerformed(ActionEvent ae)

{

if(ae.getSource()==b)

{

t.setText("YOUR NAME HERE:");

}

Simple Event Program In Java

/*EVENT PROGRAM IN JAVA*/

import java.lang.*;
import java.awt.*;
import java.awt.event.*;

class aaa extends Frame implements ActionListener
{

Button b1,b2,b3,b4,b5,b6;
Label a,b,c,d,r,t;
TextField a1,a2,a3,a4,a5,a6,a7;
int a1;

public aaa()
{
b1=new Button("SUBMIT:");
b2=new Button("RESET:");
b3=new Button("EXIT:");
b4=new Button("TOTAL:");
b5=new Button("NEW:");
b6=new Button("OLD:");

a=new Label("NAME:");
b=new Label("AGE:");
c=new Label("GENDER:");
d=new Label("EMAIL_ID:");
r=new Label("MOBILE NUMBER:");
t=new Label("NATIONALITY:");

a1=new TextField(20);
a2=new TextField(20);
a3=new TextField(20);
a4=new TextField(20);
a5=new TextField(20);
a6=new TextField(20);
a7=new TextField(20);

setLayout(new FlowLayout());
add(b5); add(b6);

b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
b5.addActionListener(this);
b6.addActionListener(this);

}

public aaa(int a1)
{
if(a1==0)
{
setLayout(new FlowLayout());
add(a); add(b); add(c); add(d); add(r); add(t);
add(b1); add(b2); add(b3);
}
}

public void actionPerformed(ActionEvent ae)
{
if(ae.getSource()==b5)
{
aaa(0);
}

if(ae.getSource()==b6)
{

setLayout(new FlowLayout());
add(a); add(b); add(c); add(d); add(r); add(t);
add(b1); add(b2); add(b3); add(b4);
}

if(ae.getSource()==b3)
{
System.exit(0);
}

}

public static void main(String args[])throws Exception
{

aaa g=new aaa();

g.setSize(300,600);

g.setVisible(true);

}

}