01-11-2008, 08:02 PM
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want code
i need a program code that will contain balance of 3 customer.the program will contain a class that has the following member
Data member:1.account number 2.name 3.balance Methods:1.to initialize the balance 2.to deposit in balance 3.to withdraw from a balance 4.to display account no.,name, & final balance 
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02-11-2008, 02:41 PM
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Re: want code
Hello shawon,
Welcome to the Java Programming Forums. Have you started to write the code yourself yet? People here will be reluctant to do your entire project for you but we will always be happy to help you expand on what you already have. Thats the best way to learn after all. Please post the code you have and I will help you with any problems 
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08-11-2008, 04:36 PM
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Re: mycode
Java Code:
import java.util.Scanner;
class DataOfRoom
{
float width;
float height;
float depth;
float length;
float radious;
DataOfRoom(float width,float height,float depth)
{
this.width=width;
this.height=height;
this.depth=depth;
}
DataOfRoom(float radious)
{
this.radious=radious;
}
DataOfRoom(float length)
{
width=height=depth=length;
}
void volume()
{
double rectangle=(double)width*height*depth;
double circle=(double)2*3.1416*radious;
double square=(double)length*length*length;
}
void area()
{
double rectangle=(double)width*height;
double circle=(double)3.1416*radious*radious;
double square=(double)length*length;
}
}
class Room
{
public static void main(String args[])//throws IOException
{
BufferedReader BR=new BufferedReader(new InputStreamReader(System.in));
float width1,height1,depth1,length1,radious1;
System.out.println("ENTER WIDTH OF RECTANGLE");
width1=input.nextFloat();
System.out.println("ENTER HEIGHT OF RECTANGLE");
height1=input.nextFloat();
System.out.println("ENTER DEPTH OF RECTANGLE");
depth1=input.nextFloat();
System.out.println("ENTER LENGTH OF SQUARE");
length1=input.nextFloat();
System.out.println("ENTER radious OF RECTANGLE");
radious1=input.nextFloat();
DataOfRoom myRectangle=new DataOfRoom(width,height,depth);
DataOfRoom myCircle=new DataOfRoom(radious);
DataOfRoom mySquare=new DataOfRoom(length);
}
}
the program will find out area & volume of rectangle,circle,square. wish quick reply. Last edited by shawon barua; 25-12-2008 at 07:24 PM.
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08-11-2008, 06:26 PM
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Re: want code
I can see you are trying to use the scanner class to take user input but you are not using the correct code.
In the code you have submitted you are using a BufferedReader. Try this, Ive changed the Room class: Java Code:
class Room
{
public static void main(String args[])//throws IOException
{
//BufferedReader BR=new BufferedReader(new InputStreamReader(System.in));
Scanner sc = new Scanner(System.in);
float width1,height1,depth1,length1,radious1;
System.out.println("ENTER WIDTH OF RECTANGLE");
width1=sc.nextFloat();
System.out.println("ENTER HEIGHT OF RECTANGLE");
height1=sc.nextFloat();
System.out.println("ENTER DEPTH OF RECTANGLE");
depth1=sc.nextFloat();
System.out.println("ENTER LENGTH OF SQUARE");
length1=sc.nextFloat();
System.out.println("ENTER radious OF RECTANGLE");
radious1=sc.nextFloat();
DataOfRoom myRectangle = new DataOfRoom(width,height,depth);
DataOfRoom myCircle = new DataOfRoom(radious);
DataOfRoom mySquare = new DataOfRoom(length);
}
}
I still had errors when I tried to compile the code but the input is being fead in correctly.
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09-11-2008, 05:07 PM
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Re: want code
/* In a class hierarchy, private members remain
private to their class. This program contains an error and will not compile. */ Java Code:
// Create a superclass.
class A {
int i; // public be default
private int j; // private to A
void setij(int x, int y) {
i = x;
j = y;
}
}
// A's j is not accessible here.
class B extends A {
int total;
void sum() {
total = i + j; // ERROR, j is not accessible here
}
}
class Access {
public static void main(String args[]) {
B subOb = new B();
subOb.setij(10, 12);
subOb.sum();
System.out.println("Total is " + subOb.total);
}
}
Last edited by shawon barua; 09-11-2008 at 05:46 PM.
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09-11-2008, 05:35 PM
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Re: want code
Hey,
In future can you please post all your code within the [code] [ /code] tags. Thanks. This sounds like course work! Can you change the int variables access type? If so, simply change it from private to public. Java Code:
// Create a superclass.
class A {
int i; // public be default
public int j; // private to A
void setij(int x, int y) {
i = x;
j = y;
}
}
// A's j is not accessible here.
class B extends A {
int total;
void sum() {
total = i + j; // ERROR, j is not accessible here
}
}
class Access {
public static void main(String args[]) {
B subOb = new B();
subOb.setij(10, 12);
subOb.sum();
System.out.println("Total is " + subOb.total);
}
}
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10-11-2008, 01:40 PM
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Re: want code
Well I read in the code that the int j & i are set to public by default if there is nothing else is specified. I think it would be more readable if he didnt put "private" or "public" and just left it.
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10-11-2008, 02:55 PM
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Re: want code
You are correct that the access modifier will be set to public by default but its good coding practise to write the correct access modifier even if you want the variable to be public.
It makes it easier to read and if you are collaborating on an application then your best to show exactly what you are doing. Seeing as your new to Java id make every effort to write well written, concise code without cutting any corners.
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23-12-2008, 03:40 PM
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Re: modify the code
Java Code:
import java.io.*;
import java.awt.*;
import java.awt.Color;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import java.awt.Panel;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.MenuBar;
import java.awt.Menu;
import java.awt.MenuItem;
import javax.swing.JScrollBar;
import java.awt.TextField;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.SwingConstants;
class PanelTest extends JFrame
{
int i,j=0;
int x=190;
int row=135;
int colum=190;
MenuItem autoSum,autoAverage,min,max;
MenuItem system;
Panel panel1=new Panel();//button panel for up buttons
Panel panel2=new Panel();//button panel for side buttons
Panel panel3=new Panel();//button panel for formula bar
Panel fieldPanel=new Panel();//Text field panel for textfield
//declaration of buttons
JButton button[]=new JButton[10];//button for side
JButton button1=new JButton("A");
JButton button2=new JButton("B");
JButton button3=new JButton("C");
JButton button4=new JButton("D");
JButton button5=new JButton("E");
JButton button6=new JButton("F");
JButton button7=new JButton("G");
JButton button8=new JButton("H");
JButton button9=new JButton("I");
JButton button10=new JButton("J");
JButton t1=new JButton ("RESULT");
JButton t3=new JButton ("ENTER FORMULA");
JButton t4=new JButton ("CLICK HERE");
//declaration of textfields
TextField t[][]=new TextField[10][10];
TextField t2=new TextField("");
public PanelTest()
{
super ("SIMPLE ARITHMETIC EVALUTION 2.1");//constructor for title bar
Container c=getContentPane();
// fieldPanel.setLayout(new GridLayout(10,10,1,1));//set layout for textfield
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
t[i][j]=new TextField(" ");
t[i][j].setBounds(row,colum,70,25);
fieldPanel.add(t[i][j]);
row=row+75;
}
row=135;
colum=colum+30;
}
for(int i=0;i<10;i++)
{
button[i]=new JButton(""+(i+1));
panel2.add(button[i]);
}
button1.setBounds(135,160,70,25);
button2.setBounds(210,160,70,25);
//button2.setForGround(Color.red);
button3.setBounds(285,160,70,25);
button4.setBounds(360,160,70,25);
button5.setBounds(435,160,70,25);
button6.setBounds(510,160,70,25);
button7.setBounds(585,160,70,25);
button8.setBounds(660,160,70,25);
button9.setBounds(735,160,70,25);
button10.setBounds(810,160,70,25);
t1.setBounds(60,510,270,90);
t3.setBounds(330,510,270,45);
t4.setBounds(600,510,270,90);
t2.setBounds(330,555,270,45);
panel3.add(t1);
panel3.add(t3);
panel3.add(t4);
panel3.add(t2);
//wok for side bottons
for(i=0;i<10;i++)
{
button[i].setBounds(60,x,70,25);
x=x+30;
}
c.add(button1);
c.add(button2);
c.add(button3);
c.add(button4);
c.add(button5);
c.add(button6);
c.add(button7);
c.add(button8);
c.add(button9);
c.add(button10);
c.add(t1);
c.add(t3);
c.add(t4);
c.add(t2);
for(i=0;i<10;i++)
{
c.add(button[i]);
}
c.add(panel2);
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
c.add(t[i][j]);
}
}
c.add(fieldPanel);
c.add(panel3);
/*work of bar*/
MenuBar bar=new MenuBar();
setMenuBar(bar);
//fileMenu start
Menu fileMenu=new Menu("File");
MenuItem newFile=new MenuItem("New File .......Alt N");
MenuItem openFile=new MenuItem("Open File .....Alt O");
MenuItem exitFile=new MenuItem("Exit ...........Alt Esc");
fileMenu.add(newFile);
fileMenu.add(openFile);
fileMenu.add(exitFile);
bar.add(fileMenu);
//About Menu star
Menu aboutMenu=new Menu("About");
MenuItem project=new MenuItem("Our Project");
MenuItem project1=new MenuItem("Other Project");
aboutMenu.add(project);
aboutMenu.add(project1);
bar.add(aboutMenu);
//View Menu
Menu viewMenu=new Menu("View");
Menu devlopersProfile=new Menu("Devlopers Profile");
MenuItem zeroEightProfile=new MenuItem("08 Profile");
MenuItem rony=new MenuItem("MD.SHIFUDDIN AL MASUD");
MenuItem banna=new MenuItem("TARAK AMAN BANNA");
MenuItem joy=new MenuItem("DEBASHIS CHAKROBORTI");
MenuItem shawon=new MenuItem("SHAWON BORUA");
MenuItem shristi=new MenuItem("SHRISTI SUMONA NATH");
MenuItem toma=new MenuItem("TOMA HATI");
devlopersProfile.add(rony);
devlopersProfile.add(banna);
devlopersProfile.add(joy);
devlopersProfile.add(shawon);
devlopersProfile.add(shristi);
devlopersProfile.add(toma);
viewMenu.add(devlopersProfile);
viewMenu.add(zeroEightProfile);
bar.add(viewMenu);
//HELP MENU
Menu help=new Menu("Help");
system=new MenuItem("HOW TO RUN");
help.add(system);
bar.add(help);
//action menu
Menu action=new Menu("Action");
autoSum=new MenuItem("Auto Sum");
autoAverage=new MenuItem("Auto Average");
MenuItem autoMultiply=new MenuItem("Auto Multiply");
MenuItem min=new MenuItem("Minumum");
MenuItem max=new MenuItem("Maximum");
action.add(autoSum);
action.add(autoAverage);
action.add(autoMultiply);
action.add(min);
action.add(max);
bar.add(action);
show();
TextFieldHandler handler = new TextFieldHandler();
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
t[i][j].addActionListener(handler);
}
}
help.addActionListener(handler);
autoSum.addActionListener(handler);
autoAverage.addActionListener(handler);
t4.addActionListener(handler);
min.addActionListener(handler);
max.addActionListener(handler);
system.addActionListener(handler);
}
class TextFieldHandler implements ActionListener
{
int sum=0,sum1=0,sum2=0,mul=1,i=0,j=0,minimum=0,l=0,maximum=0,length=0,location=0,length1=0,length2=0,counter1=0,counter2=0,counter11=0,counter22=0;
int a[]=new int[100];
char array[]=new char[10];
char array1[]=new char[10];
char array2[]=new char[10];
//MyPanel ob=new MyPanel();
public void actionPerformed( ActionEvent event )
{
String string ,string1;
sum=0;
mul=1;
if(event.getSource()==system)
{
Help myhelp=new Help();
myhelp.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myhelp.setSize(800,700);
myhelp.setVisible(true);
}
if(event.getSource()==t4)
{ l=0;
//t[9][9].setText("");
for(i=0;i<10;i++)
{ for(j=0;j<10;j++)
{ string=t[i][j].getText();
string1="0"+string.trim();
a[l]=Integer.parseInt(string1);
l++;
}
}
string=t2.getText();
string1=string.trim();
length=string1.length();
string1.getChars(0,(length),array,0);
for(i=0;i<length;i++)
{ if(array[i]=='+'||array[i]=='-'||array[i]=='*')
{ location=i;
}
}
for(i=0;i<location;i++)
{ array1[i]=array[i];
length1++;
}
j=0;
if(length-length1==4)
{
array2[0]=array[location+1];
array2[1]=array[location+2];
array2[2]=array[location+3];
//JOptionPane.showMessageDialog(null," "+(length-length1));
}
else
{
array2[0]=array[location+1];
array2[1]=array[location+2];
//JOptionPane.showMessageDialog(null," "+(length-length1));
}
if(length1==3)
{ i=9;
if(array1[0]=='a')
j=0;
if(array1[0]=='b')
j=1;
if(array1[0]=='c')
j=2;
if(array1[0]=='d')
j=3;
if(array1[0]=='e')
j=4;
if(array1[0]=='f')
j=5;
if(array1[0]=='g')
j=6;
if(array1[0]=='h')
j=7;
if(array1[0]=='i')
j=8;
if(array1[0]=='j')
j=9;
i=i*10;
j=i+j;
sum1=j;
//JOptionPane.showMessageDialog(null," "+(j)+" "+i);
}
else
{ if(array1[0]=='a')
j=0;
if(array1[0]=='b')
j=1;
if(array1[0]=='c')
j=2;
if(array1[0]=='d')
j=3;
if(array1[0]=='e')
j=4;
if(array1[0]=='f')
j=5;
if(array1[0]=='g')
j=6;
if(array1[0]=='h')
j=7;
if(array1[0]=='i')
j=8;
if(array1[0]=='j')
j=9;
if(array1[1]=='1')
i=0;
if(array1[1]=='2')
i=1;
if(array1[1]=='3')
i=2;
if(array1[1]=='4')
i=3;
if(array1[1]=='5')
i=4;
if(array1[1]=='6')
i=5;
if(array1[1]=='7')
i=6;
if(array1[1]=='8')
i=7;
if(array1[1]=='9')
i=8;
i=i*10;
j=i+j;
sum1=j;
}
//JOptionPane.showMessageDialog(null,"position "+(sum1));
if((length-length1)==4)
{ int i=9;
if(array2[0]=='a')
j=0;
if(array2[0]=='b')
j=1;
if(array2[0]=='c')
j=2;
if(array2[0]=='d')
j=3;
if(array2[0]=='e')
j=4;
if(array2[0]=='f')
j=5;
if(array2[0]=='g')
j=6;
if(array2[0]=='h')
j=7;
if(array2[0]=='i')
j=8;
if(array2[0]=='j')
j=9;
i=i*10;
j=i+j;
sum2=j;
}
else
{ if(array2[0]=='a')
j=0;
if(array2[0]=='b')
j=1;
if(array2[0]=='c')
j=2;
if(array2[0]=='d')
j=3;
if(array2[0]=='e')
j=4;
if(array2[0]=='f')
j=5;
if(array2[0]=='g')
j=6;
if(array2[0]=='h')
j=7;
if(array2[0]=='i')
j=8;
if(array2[0]=='j')
j=9;
if(array2[1]=='1')
i=0;
if(array2[1]=='2')
i=1;
if(array2[1]=='3')
i=2;
if(array2[1]=='4')
i=3;
if(array2[1]=='5')
i=4;
if(array2[1]=='6')
i=5;
if(array2[1]=='7')
i=6;
if(array2[1]=='8')
i=7;
if(array2[1]=='9')
i=8;
i=i*10;
j=i+j;
sum2=j;
}
if(array[location]=='+')
{ sum=a[sum1]+a[sum2];
string=String.valueOf(sum);
t1.setText(string1+ "=" +string);
//t1.setText(string);
}
if(array[location]=='-')
{ int sub=a[sum1]-a[sum2];
string=String.valueOf(sub);
t1.setText(string1+ "=" +string);
// t1.setText(string);
}
if(array[location]=='*')
{ int mul=a[sum1]*a[sum2];
string=String.valueOf(a[sum1]*a[sum2]);
t1.setText(string1+ "=" +string);
//t1.setText(string);
}
}
if(event.getSource()==autoAverage)
{
sum=0;
j=0;
l=0;
//t[9][9].setText("");
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
string=t[i][j].getText();
string1="0"+string.trim();
a[l]=Integer.parseInt(string1);
l++;
}
}
for(i=0;i<l;i++)
{ if(a[i]==0)
{
j++;
}
}
j=0;
for(i=0;i<l;i++)
{
sum=sum+a[i];
}
sum=sum/(100-(j-10));
string=String.valueOf(sum);
t1.setText(string);
}
if(event.getSource()==autoSum)
{
sum=0;
j=0;
l=0;
t[9][9].setText("");
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{ string=t[i][j].getText();
string1="0"+string.trim();
a[l]=Integer.parseInt(string1);
l++;
}
}
for(i=0;i<l;i++)
{
sum=sum+a[i];
}
string=String.valueOf(sum);
t1.setText(string);
}
if(event.getSource()==min)
{ sum=0;
j=0;
l=0;
t[9][9].setText("");
for(i=0;i<10;i++)
{ for(j=0;j<10;j++)
{ string=t[i][j].getText();
string1="0"+string.trim();
a[l]=Integer.parseInt(string1);
l++;
}
}
minimum=a[0];
for(i=0;i<l;i++)
{ if(minimum>a[i])
minimum=a[i];
}
string=String.valueOf(minimum);
t[9][9].setText(string);
}
if(event.getSource()==max)
{
sum=0;
j=0;
l=0;
t[9][9].setText("");
for(i=0;i<10;i++)
{ for(j=0;j<10;j++)
{ string=t[i][j].getText();
string1="0"+string.trim();
a[l]=Integer.parseInt(string1);
l++;
}
}
maximum=a[0];
for(i=0;i<l;i++)
{ if(minimum<a[i])
maximum=a[i];
}
string=String.valueOf(maximum);
t[9][9].setText(string);
}
}
}
}
class Help extends JFrame
{
JLabel label,label1,label2,label3,label4,label5,label6;
//JButton button=new JButton("TYPES OF HELP");
public Help()
{
super("THE WORDL OF HELP");
setLayout(new FlowLayout());
Icon photo=new ImageIcon(getClass().getResource("ron.jpg"));
label=new JLabel();
label1=new JLabel("ASs");
label2=new JLabel();
label3=new JLabel();
label4=new JLabel();
label5=new JLabel();
label6=new JLabel();
//label.setText("AUTO RUN::");
/*+
"1.Frist enter nnumeric value to the textfield."+
"2.Click Auto Sum for sum."+
"3.Click Auto Average to average"+
"4.Click Minimum to get the minimum value."+
"5.Click Maximum to get the miaximum value."+
"MANUAL MANIPULSATION::"+
"1.Frist enter nnumeric value to the textfield."+
"2.Enter address of the data at the formula bar"+
"3.Now press RESULT button."+
"THANK YOU SIR");
*/
label.setIcon(photo);
//label.setHorizontalTextPosition(SwingConstants.CENTER);
//label.setVerticalTextPosition(SwingConstants.BOTTOM);
label.setToolTipText("CSE THE ULTIMATE");
add(label);
label1.setText("AUTO RUN::");
label1.setBounds(5,5,70,34);
//label.setText("AUTO RUN::");
//label.setText("AUTO RUN::");
//label.setText("AUTO RUN::");
add(label);
}
}
class MyPanel
{
public static void main(String a[])
{
PanelTest myTest=new PanelTest();
myTest.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myTest.setSize(900,700);
}
}
Last edited by shawon barua; 25-12-2008 at 07:25 PM. Reason: the tag is given
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