Oracle Java Certification - OCA | Primitive & Reference Types | #java #certification #tutorial

Timestamps:
0:00 Introduction
0:41 Primitive Types
3:46 Exam Questions Examples
18:22 Reference Types
19:15 Exam Questions Examples
23:55 Key Differences

Hi Guys, this is the Sixth lecture in the OCA and OCP Certification preparation series, this video covers Primitive and Reference Types in java, I have covered everything required for the exam for this topic, I have also shown examples of questions which may come from this topic, I hope you like the video and also pls do subscribe

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[haiaotan]

nice video. I just one to give out an formula to calculate the value in decimal for binary, octal and hexadecimal(hexa in short)
Binary(0-1): calculate from left to right, use base 2 (do not calculate 0b)
- Example: int A = 0b1010;
-> formula: (value u see)* 2^(n) | n is same as index in array, start from 0 when count left to right
-> 0*2^0 + 1*2^1 + 0*2^2 + 1*2^3 = 10

Octal(0-7): base 8 ( do not calculate 0)
- Example: int A = 015 equal to decimal value is 13;
-> formula: (value u see)* 8^(n)

Hexadecimal(0-9 and A, B, C, D, E, F stand for 10, 11, 12, 13, 14, 15): base 16 - do not calculate 0x
- Example: int A = 0x9D equal to decimal value is 157
-> formula: (value u see)* 16^(n) | n is same as index in array, start from 0 when count left to right