Skip to main content

Java and Data Types of Java | Java Journey by Divyanshu 02

What is JAVA ?
Ans: Java is a high level object oriented Programing Language, which is Developed with the principal of "WORA" . 


  • Now what about WORA ?
    Ans: Write once read anywhere this is WORA .
  • Java ko 1990s Mein James Gosling and Unki team ne develop kiya tha. 
  • Java is a platform Independent Language, iska matlb ye hai ek bar Java likhne ke bad aap ise kisi bhi operating System me chla skte hai (Ye WORA ka part hai).
  • Java ka phla name “OAK” tha .
  • Java ka koi full form nhi hota hai
  • Java Name Indonesia ke first coffee ka name tha jaha java Ke developer James rha krte the 
About JAVA Data Types:  


Data types are declarations for variables. This determines the type and size of  data associated with variables which is essential to know since different data  types occupy different sizes of memory.


There are 2 types of Data types in JAVA:  


  • Primitive Data types : to store simple values

  • Non-Primitive Data types : to store complex values


Comments

Popular posts from this blog

Python Final Lectures

 Q- how to Print Hello World print("Hello World") Variables in python ------- age = 30   #variable should be intutive so that we can learn any time print(age) Note: Shift+Enter is shortcut to run command 2) ' #' this is for writing the comment in python Rules for Variables--- Variable can not be start with any number like - 1age  Number can use in between and end with variable like - age1 age2 Special characters are not allowed expect _ (underscore) like - age_my Space not allowed in variable  Python is case sensitive  Way to define Variable --- age1,age2 = 30,25  age1 = 30 age2 = 25 age1=age2=30   #if 30 age for both variable   >> Data type the type of data is basically data type Integer = age1 to age3 is basically integer   , Integer is basically full number lets check = type(age1)  #it will give u print int float=  basically decimal values Interest =  30.24 type(Interest) #answer is float Message = ...

Add CSS using external CSS

>>> U just need to create a another page and save it with the name style.css >>> and then go to link that style page with your html docs how to link your css with html page ? >>> You can find code below , it will help you to link your external page with your html docs <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Divyanshu Khare || MERN Developer</title> <meta description = "description" content="Divyanshu Khare's website"> <link rel="stylesheet" type="text/css" href="style.css">   <!----------link external css page ---------> </head> <body> </body> </html>

Python

Indexing--  it will help u to fetch single character  string= "Python" string[2] # slicing process of fetching a sub-string from the given string  #sequence of charater we can fetch means more than 1 character string="Divyanshu" string[2:4+1]   #basically here number is index value #string[start_index:end+index+1] string = "Hunny"   #indexing agr positive hai to left se count hoga #right se negative me string[:]  #it will give u entire string #now If i want to any characterwise index like string is Hunny and I want un only #string[start_index:end_index+1:step] string[1:4:2] #reverse your string #string[:: -1] string="Baba hunny" string[:: -1] # to convert into lowecase string="New Divyanshu" new_string=string.lower()  #new_string becase we've to create another string print(new_string) s1={1,2,3,4,5}    s2={3,2,8,67,85} s3=s1.union(s2) s3   #isme add hota hai whole value lekin common value update nhi hongi #intersection - ...