java 1st lesson

1. JAVA
DATA STRUCTURES

2. Who develops JAVA?
James Gosling from Sun
Microsystems
Developed in 1991.
Version 1.0. The first version was
released on January 23, 1996.

3. ETYMOLOGY of JAVA
Coffee

4. What is Java Technology?
Java is a relatively new programming language. At
that time, and his team began designing the first
version of Java, aimed at programming home
appliances which are controlled by a wide variety of
computer processors.
Java is Free.

5. SYNTAX STRUCTURE
CODE:

6. Data Type Declaration

7. Comment Syntax
CODE:

8. Output or Print Syntax
CODE:
Print text with variables.

9. System.out.println(); Function
method displays the result &
then throws the cursor to the
next line.

10. System.out.println(); Function
CODE:
MULTIPLE ENDLINE:

11. User’s input to Variable
CODE:

12. Different type Scanner
1. lnt= get.nextInt();
2. long= get.nextLong();
3. float= get.nextFloat();
4. double= get.nextDouble();
5. String= get.nextLine();
6. char= get.next().charAt(0);

13. 3 Steps in Running your java file
1. Find where is the location of your file.
cd destination
2. Compile your code.
javac filename.java
3. Run or Execute your program.
java filename

14. END