Gateway Of Information Technology

Thursday, September 10, 2015

Lets Learn Loops in C++

Monday, August 24, 2015

While Loop in Different Forms

Predict the output of the following codes:

1. int i=0;
while(i<10)
{
JOptionPane.showMessageDialog(rootPane,"hello");

}

2. int i=110;
while(i<10)
{
JOptionPane.showMessageDialog(rootPane,"hello");
}

3. int i=0;
while(i<10);
{
JOptionPane.showMessageDialog(rootPane,"hello");
i=i+1;
}

4. int i=0;
while(i<10)
{
JOptionPane.showMessageDialog(rootPane,"hello");
i++;
}

5. int i=0;
while(i<10)
{
JOptionPane.showMessageDialog(rootPane,"hello");
i--;
}

6. int i=0;
while(i==10)
{
JOptionPane.showMessageDialog(rootPane,"hello");
}

7. while(i<10)
{
JOptionPane.showMessageDialog(rootPane,"hello");
}

8. int i=0;
while(i<10)
{
JOptionPane.showMessage Dialog(rootPane. "hello");
}

9. int i=0;
while(i<10)
{
JOptionPane.showMessageDialog(rootPane,"hello");
i=10;
}

10. int i=0;
while(i<10)
{
JOptionPane.showMessageDialog(rootPane,"hello");
i=i+1;
i=i-1;
}

11.

while(1)
{
JOptionPane.showMessageDialog(rootPane,"hello");
}

Thursday, August 20, 2015

String Function in JAVA

Wednesday, August 19, 2015

Sample HTML Code

In this HTML code we are learning how to write the tags like

H1 to H6 (Heading)
HR (Horizontal Tag)
B (Bold tag)
U (Underline Tag>
I (Italic tag)
Font (font tag)
Font tag Attributes like FACE, SIZE, COLOR
CENTER (Center tag)
BR (Line Break)

Sample Code of HTML tags

<html>

<head><title>Lets Learn HTML</title></head>

<h1>Heading</h1>

<hr>

Horizontal Rule

<hr>

This is sample BOLD

This is sample UNDERLINE

This is sample ITALIC

This is sample FONT FACE

This is sample FONT SIZE

This is sample FONT COLOR

This is sample SUB SCRIPT: Loge

This is sample SUPER SCRIPT:X2

This is sample

This is sample

</center>

</body>

</html>

OUTPUT:

Tuesday, August 18, 2015

How to write an if construct in java

User Interface:

Code written on the event of Check age Button:

int age;

age=Integer.parseInt(jTextField1.getText());

if(age<=0)

{

jLabel2.setText("ERROR");

}

else

{

if(age>0 && age<=50 )

{

jLabel2.setText("Young Age");

}

else

{

jLabel2.setText("Old Age");

}

Monday, September 08, 2014

Class X A DPS Amritsar

Today we have learned How to Create Blog

Wednesday, October 09, 2013

Database Intro

Software is a set of instruction to perform a particular task

Database is collection of tables.

Table is a collection of columns which stores information in the form of rows. which refers to a records.

RDBMS or DBMS (Relational Database Management System or Database Management System)

Is a software which is use to manage data.

Operations like Adding new records and modifying old records and delete the old records are performed in Database

Various Databases are like Oracle, Microsoft, MySql.

Microsoft Access is a graphical tool to create database and manage tables in a database.

Simplest Example of a Database operations is a mobile phone Contacts

Mobile-> Database

Contacts-> table

Records of our friends

firstname

lastname

middlename

mobileno

homeno

dob

address

all the above are the columns of a contact table

task on the table

new

modify

delete

How to open MS Access.

Start -> All Programs -> Microsoft Office -> Access

Case Study:

I want to store information about the details of a school.

Information we need to store in a school database.

1. Students

2.Staff

3.Class

4.Exam

5.Subject

Database Name : SchoolDB

Tables in a SchoolDB Database

1. Table Name: Students

2. Table Name: Staff

3. Table Name: Class

4. Table Name: Exam

5. Table Name: Subject

Columns in Students Table:

RollNo.

FirstName

LastName

MiddleName

MobileNo.

HomeNo

FatherName

Mothers Name

DOB

Age

Address

ClassName

LastClassScore

LastSchoolName

FeePaid

Section

Columns in Staff Table:

FirstName

LastName

MiddleName

MobileNo.

HomeNo

Address

Qualification

Post

Exp

Salary

LastSchoolName

Columns in Class Table:

ClassID

Classname

fee

Columns for Exam Table

ClassID

SubjectID

Rollno

Marks

Columns for Subject Table

SubjectID

SubjectName

ClassID