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


Labels:

Comments

Post a Comment

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 = ...
Post a Comment
Read more

Excel For Data Analysis

 sum = Add numbers, it is basically sumission  =SUM(number1, [number2], ...) Example: =SUM(A1:A7)  ⚡ Tips: You can use AutoSum for quick addition: Select a cell → click Home → AutoSum (Σ) → press Enter . Shortcut key: Alt + = (automatically inserts =SUM() ). Min = TO FIND MINIMUM VALUE  =MIN(A1:A12)  max = TO FIND MAXIMUM VALUE =MAX(A1:A13)  Right  ExamPle: =RIGHT(E2,10)  basically mere pas number hai 91 country code ke sath, main chahta hu 91 code ke bad right se 10 numbers mujhe nikal ke aa jaye yaha E2 mera column number hai and 10 jo mujhe chahiye right se Cases: किसी product code ke last digits निकालने के लिए  किसी date ya year ke last 2 digits निकालने के लिए किसी naam ke last letters निकालने के लिए Note: if I want to paste horizontally number then will use 'paste ke option me transpose left  == left se digits extract krne ke liye will use this  =LEFT(E2,2)   E2 IS CELL AND 2 IS DIG...
Post a Comment
Read more

SQL and rest python for Data analysis

SQL (Structured Query Language) की ओर — ये डेटा हैंडलिंग का अगला स्टेप है, जहाँ हम database से data को fetch, update, delete, filter, aur organize करना सीखते हैं। 💾 SQL क्या है (What is SQL)? SQL का मतलब है Structured Query Language — ये एक database language है जिसका इस्तेमाल data को store, access, और manage करने के लिए किया जाता है। जैसे Excel में data sheets होती हैं, वैसे SQL में tables होती हैं। Type Keyword Use 1️⃣ DDL (Data Definition Language) CREATE , ALTER , DROP Database structure change करने के लिए 2️⃣ DML (Data Manipulation Language) INSERT , UPDATE , DELETE Data change करने के लिए 3️⃣ DQL (Data Query Language) SELECT Data निकालने के लिए 4️⃣ DCL (Data Control Language) GRANT , REVOKE Permission देने या हटाने के लिए 5️⃣ TCL (Transaction Control Language) COMMIT , ROLLBACK Changes को confirm या cancel करने के लिए Download MY SQL From Google >>>Lets learn this concept compare with excel Concept in SQL Excel Equivalen...
Post a Comment
Read more