Training PPT on JAVA in NIIT

1. UNDER THE GUIDENCE OF
PRINCE MALHOTRA (Manager)

2. Java is a high-level programming language originally
developed by Sun Microsystems and released in 1995.
Java runs on a variety of platforms, such as Windows ,
Mac OS, and the various versions of UNIX.
Used in :
#Desktop Applications
#Web application
#robotics
#Games
#Mobile

3. #SIMPLE
#OBJECT ORIENTED
#PLATFORM INDEPENDENT
#SECURED
#MULTITHREADED
#ROBUST

8. Designing programs using classes and
objects..Simplify software development and
maintenance by providing concepts:
#object
#class
#inheritance
#polymorphism
#Abstraction
#Encapsulation

9. Abstraction is a process of hiding internal details
and showing only functionality to the user..
Ways to achieve abstraction:
# Abstract class
# Interface
abstract class Bike { abstract void run(); }
class Honda extends Bike {
void run() { System.out.println(“run safely”); }
public static void main(String args[]) {
Bike obj=new Bike();
obj.run();
}}

10. It is a mechanism to achieve fully abstraction and
multiple inheritance in java...
interface Printable { void print(); }
interface Showable { void show(); }
class A implements Printable,Showable {
print void print(){ System.out.println(“hello”); }
print void show(){ System.out.println(“Welcome”); }
public static void main(String [] args)
{
A obj= new A();
obj.print() ; obj.show() ; }}

12. class Bike {
void run() { System.out.println(“running ”); }
class Splender extends Bike {
void run() { System.out.println(“running safely”); }
public Static void main(String []args)
{
Bike obj=new Splender ();
obj.run();
}}

13. Default Constructor:
class B
{
B(){ System.Out.Println(“Welcome”)}
public Static void main()
{
B obj=new B(); }}

15. class S
{
Int id; String name; int age;
}
S(int i,String n,int a) { name=n; id=i; age=a; }
S(int i; String n) { name=n; id=i; }
void display(){ System.out.println (id+” ”
+name” ”+age) ; }
public Static void main(String args[]){
S ob1=new S(111, “ keran”);
S obj2=new S(231, “bhanu”, 23);
obj1.display();
obj2.display(); }}

16. Static property is shared to all objects..
class S {
int rollno; String name;
Static String college=ITS; }

18. #try
#catch
#finally
#throw
#throws

19. class A{
public Static void main(String []args) {
int a=integer parse int(args[0]);
int b=integer parse int(args[1]);
int div=0;
try{
div=a/b;
System.out.println(div); }
catch(Arithmetic Exception e){
printStackTrace();
}
System.out.println(“the race is on”);
}}