Assingment File

8/20/2019 Assingment File

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1

cknowledgement

I express my deep gratitude and appreciation to those who agreed to

participate in this project, for their time and courage in sharing their insights

with a fledging student. It is to them I am most indebted, and I can only

hope the product of our collaboration benefits each one as much as I

benefited from the process.

I thank my God for providing me with everything that I required in

completing this project.

I am highly indebted to the Teacher in Charge Mrs. Priyanka Upmanyu for

her guidance and constant supervision as well as for providing necessary

information regarding the assignment & also for her support in completing

the project. Also, I thank Mr.H.P Singh, principal, K.V No.1 AFS for

supporting me in completion of this project.

I would like to express my gratitude towards my parents for their kind co-

operation and encouragement which helped me in the completion of this

project.

My thanks and appreciations also go to my classmates in developing the

project and to the people who have willingly helped me out with their

abilities.

ISHTA TRIPATHI

Class XII – D (Commerce)


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Certificate

This is to certify that Miss shta Tripathi of Class XII - D

(Commerce) of Kendriya Vidyalaya had completed her assignment

file under my supervision. She has taken proper care and shownutmost sincerity in the completion of the project. I certify that this

project is up to my expectations and as per the guidelines issued by

the CBSE.

Mrs. Priyanka Upmanyu

P.G.T Computer Science


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Declaration

I hereby declare that the assignment file submitted to Department of

Computer Science and Informatics Practices, Kendriya Vidyalaya isprepared by us. All the coding is a result of only my personal efforts.

ISHTA TRIPATHIClass XII – D (Commerce)


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Contents

1.

Simple Java IDE Projects……..5-222.

MySQL Queries…....…………23-28

3.

Connectivity Programs………29-34

4.

Html Pages……………………35-38


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Simple Java ide pplications

1) To display the no. of year, months and days as the input of no. of days

given by the user.

Coding:

private void jButton1ActionPerformed(java.awt.event.ActionEvent

evt) {

String days= JOptionPane.showInputDialog("Enter No. of Days");

int ds=Integer.parseInt(days);

int d =0, m=0, y=0;

y = ds/365;

m = (ds

% 365)

/ 30;

d = (ds %365) % 30;

String msg = ""+ds+" days are equivalent to \n"+y+" years "+m+"

months "+d+" days approx.";

JOptionPane.showMessageDialog(null, msg); Screen Shots:


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2)

A simple text editor that offers typing, copy, cut and paste features.

Coding:

private void b1ActionPerformed(java.awt.event.ActionEvent evt) {

ta.cut();

}


ta.copy();

}


ta.paste();

}

Screen Shots:

Figure 1 TextFigure 2 After Cut

Figure 3 After Clicking Paste


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3)

Program to check whether the given no. is Palindrome or not.

Coding:

boolean testPalin(int n){

int n1 = n, rev = 0;

int dig = 0;

while (n1>0){

dig = n1 % 10;

rev = rev * 10 + dig;

n1 = n1 / 10; }

if (n==rev)

return true;

else

return false;

}


int num = Integer.parseInt(tf1.getText());

boolean result = testPalin(num);

if (result)

l2.setText(num+" is a Palindrome.");

else

l2.setText(num+" is NOT sa Palindrome.");

}

Screen Shots:


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4)

Design an application for bill calculation of a ice-cream parlor. The

parlor offers three verities of ice-cream – vanilla, strawberry, chocolate.

Vanilla icecream costs Rs. 30, Strawberry Rs. 35 and Chocolate Rs. 50. A

customer can chose one or more ice-creams, with quantities more than

one for each of the variety chosen. To calculate the bill parlor manager

selects the appropriate check boxes according to the verities of ice-cream

chosen by the customer and enter their respective quantities.

Coding:

int pv=20,ps=35,pc=45;

int q;

String error="Please enter a Valid Quantity.";

private void formWindowGainedFocus(java.awt.event.WindowEvent evt) {

tf1.setText(pv+"");

tf2.setText(ps+"");

tf3.setText(pc+"");

if (cb1.isSelected()==true)

tf11.setEditable(true);





}


int q=Integer.parseInt(tf111.getText());

int w=Integer.parseInt(tf222.getText());

int e=Integer.parseInt(tf333.getText());

tf.setText(q+w+e+"");

}



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cb1.setSelected(false);



tf11.setText(0+"");

tf11.setEditable(false);

tf111.setText(0+"");

tf22.setText(0+"");



tf33.setText(0+"");



tf.setText(0+"");

}


System.exit(0);

}

Screen Shots:

Figure 4 Basic Application Figure 5 Result


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5)

Regal Theater has computerized its ticketing system. The programmer

has developed a GUI application in NetBeans as the given conditions,

At the ticket counter, 3 types of tickets (box, balcony, general) at the rate

of 200, 150 and 100 respectively are available. If the movie is tax free,

then the total amount should be deducted by Rs. 25 per ticket.

Coding:private void b1ActionPerformed(java.awt.event.ActionEvent evt) {

int n,amt,tamt,temp;

n=Integer.parseInt(tf2.getText());

if (rb1.isSelected()==true){

amt=n*200;

tf3.setText(""+amt);}

else if (rb2.isSelected()==true){

amt=n*150;


else {

amt=n*100;


temp=Integer.parseInt(tf3.getText());

if (cb.isSelected()==true){

tamt=temp‐(n*25);

tf3.setText(""+tamt);}

}


tf1.setText("");

tf2.setText("");

tf3.setText("");

cb.setSelected(false);

type_of_ticket.clearSelection();

}


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b2.doClick();

System.exit(0);

}

Screen Shots:


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6)

Design an application which implements functionality by passgin

arguments of the text fields by passing them into methods {calcSum(),

calcAvg(), calcMax()}.

Coding:

float t;

public float

CalcSum(float

x,float

y,float

z){

t=x+y+z;

return t;

}

public float CalcAvg(float p,float q,float r){

t=(p+q+r)/3;

return t;

}

public float CalcMax(float i,float j,float k){

if (i>j)

if (i>k)

return i;

else

return k;

else

if (j>k)

return j;

else

return k;

}

float dis;

private void bu1ActionPerformed(java.awt.event.ActionEvent evt) {

float a,b,c;

a=Float.parseFloat(tf1.getText());

b=Float.parseFloat(tf2.getText());


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c=Float.parseFloat(tf3.getText());

dis=CalcSum(a,b,c); // Method Call

ta.append("Sum: "+dis+"\n");

}


float a,b,c;




dis=CalcMax(a,b,c); // Method Call

ta.append("Average: "+dis+"\n");

}


float a,b,c;




dis=CalcMax(a,b,c); // Method Call

ta.append("Maximum: "+dis+"\n\n");

}

Screen Shots:


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7)

Write code for “add” button to add the text into the textarea “ta”

depending upon the selection made by the user.

Coding:


if (rb1.isSelected()==true)

ta1.append("Male"+'\t');

else if (rb2.isSelected()==true)

ta1.append("Female"+'\t');

else if (rb3.isSelected()==true)

ta1.append("Other"+'\t');

else{

JOptionPane.showMessageDialog(null,"Please

Select

Your

Gender!");

ta1.append("Not Entered"+'\t');}

String age= (String)cb1.getSelectedItem();

int i=0;

int length= cb1.getItemCount();

boolean exists = false;

for (;i


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gender.clearSelection();

cb1.setSelectedIndex(‐1);

jl1.clearSelection();

ta1.setText("");

}

Screen Shots:


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8)

Check whether the password is “Student” or not. If not display an error.

Coding:

private void pfActionPerformed(java.awt.event.ActionEvent evt) {

b1.doClick(0);

}


String pd,name;

name = tf.getText();

pd= new String (pf.getPassword());

if (pd.equals ("student")){

tp1.setText("Welcome Back

"+name+","+'\n'+"You

have

logged

in

successfully.");

b2.setText("Proceed");

d1.setVisible(true);}

else{

JOptionPane.showMessageDialog(null,"Wrong Password"+'\n'+"Try

Again");

pf.setText("");}

}


System.exit(0);

}

Screen Shots:


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9)

Programme to swap two numbers input by user.

Coding:


Float a,b,c;



c=b;

b=a;

a=c;

tf1.setText(""+a);

tf2.setText(""+b);

}


tf1.setText("");

tf2.setText("");

}


System.exit(0);

}

Screen Shots:


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10)

Dummy School uses an interface built in java to check the eligibility of a

student for a particular stream from sciences, commerce and humanities.

The user first enters the total percentage and selects the desired stream

by selecting appropriate option button. An additional 5% marks are given

to students of NCC. Write code.

Coding:private void b1ActionPerformed(java.awt.event.ActionEvent evt) {

float per;

per= Float.parseFloat(tf2.getText());

if (cb.isSelected()==false)

tf3.setText(""+per);

else

tf3.setText(""+(per+5));

}


b1.doClick();

float per = Float.parseFloat(tf3.getText());

if (rb1.isSelected()==true){

if (per>=70)

tf4.setText("Eligible!");

else

tf4.setText("Not Eligible");}


if (per>=60)


else



if (per>=40)



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else


else

JOptionPane.showMessageDialog(null, "Please Select A Subject.");

}

private void

b3ActionPerformed(java.awt.event.ActionEvent

evt)

{

group.clearSelection();

cb.setSelected(false);

tf1.setText("");

tf2.setText("");

tf3.setText("");

tf4.setText("");

}


System.exit(0);

}

Screen Shots:


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11)

Design an application that has some controls and a list displaying colors.

When a user selects a color from the list the background of the controls

selected should be changed.

Coding:

private void list1ValueChanged(javax.swing.event.ListSelectionEvent evt) {

int i;

Color x=Color.white;

i=list1.getSelectedIndex();

switch (i){

case 0: x=Color.RED;

break;

case 1: x=Color.BLUE;

break;

case 2: x=Color.GREEN;

break;

case 3: x=Color.MAGENTA;

break;

case 4: x=Color.CYAN;

break;

case 5: x=Color.YELLOW;

break;

case 6: x=Color.GRAY;

break;

default: x=Color.WHITE;

}

if(lblcb.isSelected()==true)

lbl.setBackground(x);

else


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lbl.setBackground(Color.WHITE);

if(bcb.isSelected()==true)

b.setBackground(x);

else

b.setBackground(Color.WHITE);

if(tfcb.isSelected()==true)

tf.setBackground(x);

else

tf.setBackground(Color.WHITE);

}

Screen Shots:


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12)

Design an application which shows all the odd numbers from 1 to the

number given as input.

Coding:

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

ta.setText(null);

int n = Integer.parseInt(tf1.getText());

int i = 1;

for (; i


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MySQL queries

Table Student

1.

Displaying whole table

2.

Displaying name and sex of student who are more than 12 years and

are male.

3.

Displaying name, marks and percentage of all students


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4.

Displaying the count of the students who scored more than 50%

5.

Displaying names, marks and sex of students in the order where thetop scorer is first.

6.

Displaying all the information of students where the second alphabet

of the their name is a.

7.

Displaying the average age of the students


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Table Pet

8.

Displaying all information about pets whose species is either bird /

snake / hamster

9.

Displaying all information about pets whose owner’s name contains

alphabet ‘e’

10.

Displaying No of different species

11.

Displaying name and sex of all the animals born before or on 01-

01-1995


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Table Empl

12.

Displaying names and job of employees who earn more

commission than salaries

13.

Displaying all information about employees having 4 lettered

names

14.

Displaying names, job and salary of employees who don’t have a

manager

15.

Displaying all information about employees who don’t earn any

commission


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16.

To update salary of salesman by 25%

17.

Displaying the maximum salary

18.

Displaying number of employees in each grade

Table Dept

19.

Add a column country which cannot be null and by default its

value should be India

20.

Delete column country


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Table Empl and Dept

21.

Joining both the tables and order them in the order of increasing

salary

22.

Show all information about employees whose salary is >2000

23.

Drop Database if exists

24.

Displaying current database


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Java MySQL connectivity

pplications

1) To create a simple GUI application that displays the records of a database

table in a tabular format (using jTable) on the GUI form.Coding:

import java.sql.*;

import javax.swing.table.DefaultTableModel;

import javax.swing.JOptionPane;

Connection c;

Statement s;

ResultSet rs;


DefaultTableModel model= (DefaultTableModel) empl.getModel();

try{

Class.forName("java.sql.Driver");

c=DriverManager.getConnection("jdbc:mysql://localhost/con","root","");

s=c.createStatement();

rs=s.executeQuery("Select * from

empl;");

while(rs.next()){

int eno=rs.getInt("empno");

String ena=rs.getString("ename");

String j=rs.getString("job");

int mgr=rs.getInt("mgr");

String hd=rs.getString("hiredate");

float sal=rs.getFloat("sal");

float com=rs.getFloat("comm");

int deptno=rs.getInt("deptno");

model.addRow(new Object[] {eno,ena,j,mgr,hd,sal,com,deptno});

}

rs.close();


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s.close();

c.close();

}

catch (Exception s){

JOptionPane.showMessageDialog(null,"Error In Connectivity");

}

}


DefaultTableModel model=(DefaultTableModel) empl.getModel();

int row=model.getRowCount();

if(row>0){

for(int i=0;i


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Screen Shots:


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2) To create a simple GUI application that displays the records of a databasetable in a tabular format (using jTable) on the GUI form based on a criteria inputby the user. Coding:

import java.sql.*;

import javax.swing.table.DefaultTableModel;

import javax.swing.JOptionPane;

Connection c; Statement s; ResultSet r;


DefaultTableModel model = (DefaultTableModel) empl.getModel();

int rows = model.getRowCount();

if(rows>0){

for (int

i=0;i


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while(r.next()){

int l = r.getInt("empno");

String m = r.getString("ename");

String n = r.getString("job");

String o = r.getString("hiredate");

float p = r.getFloat("sal");

int q = r.getInt("deptno");

tbprp.addRow(new Object[] {l,m,n,o,p,q});

}

r.close();

s.close();

c.close();

}

catch (Exception f){

JOptionPane.showMessageDialog(null,"Error in Connectivity!!");

}

}

private void

b3ActionPerformed(java.awt.event.ActionEvent

evt)

{

b1.doClick(0);

System.exit(0);

}


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Screen Shots:


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tm l pages

1 Logical and Physical Text Styles

Source

Chapter 10 Example 10.16 (Page No 289)

Logical And Physical Text Styles

Logical Styles


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DFN tag ‐ HTML is a fomatting language for web pages.

CITE tag ‐ Newsweek

CODE tag ‐ printf ("The value of n is%d/n",n)

SAMP tag ‐ (Abort, Retry , Fail)?

VAR tag ‐ username

EM tag

‐Especially

the

Redhead.

KBD tag ‐ Username, host

STRONG tag ‐ You cannot be serious!!

Physical Tags

Boldface (done with 'b' tag) looks like this on your machine.

Italics (done with 'i' tag) appears like this.

Typewriter (done with 'tt' tag) text uses a fixed‐width font.

Combination of 'i' & 'b' tags.


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2 Hyperlinks


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