Skip to main content

Data Operations in Java

In my previous posts, I have enumerated the different types of data, the place where they temporarily reside and their characteristics. Those data are no way different from garbages if operation or manipulation is prohibited.


Java operators can be classified in to three categories according to their operands:
1. Unary Operator - requires one operand, examples are:



++a; a++; --a; a--;

2. Binary Operator - requires two operands, examples are:



j + k

3. Ternary Operator - requires three operands, a very good example is:



!isJosetHandsome() ? "You are a liar!" : "Honesty is such a lonely word.";

Java operators can be also classified in to the following categories according to their purpose:
1. Arithmetic - operators that perform basic math operations



a % b

2. Relational - operators that are being used for comparison



mine > yours

3. Logical - operators that are used for applying boolean logic



isClear() && isConcise()

4. Assignment - operators used for temporary assignment of values



Double idealMonthlySavings = monthlySalary * 0.40;

5. Advanced - all other operators such as parentheses, ternary if-else, brackets, new, instanceof, etc. fall here



float f = 8.8;
int i = (int) f;
Labels:

Comments

Post a Comment

Popular posts from this blog

Architecture Complexity

Here are the items to consider: Coding to an interface Service Oriented Architecture Automated Testing Domain Driven Design Custom Data Access Layer Layered architecture Complexity is relatively equal the number of lines of code. Note that complexity is not bad. It must be justified.
Post a Comment
Read more

Moving on

So I bought my self a 2.5″ hard drive enclosure for about 750 bucks. I wish I have my own tools for constructing a device as such. Instead of going for a 2GB USB flash drive, I chose to salvage the 30GB hard drive of an incapacitated laptop. Cool isn’t it? Though relatively slower than a typical USB flash drive, the storage capacity outweighs it. [To God] Thanks for being there always.
Post a Comment
Read more

Bin to hex converter in 16-bit DOS assembly

Just a quick code like putting your keyboard where your brain is. There should be another way of doing this. I hate this code. start: xor al, al xor bl, bl xor cl, cl mov dl, 4 ; use dl as counter input: mov ah, 00 int 16h cmp ah, 1ch je exit cmp al, '0' jb input cmp al, '1' ja input convert: mov cl, dl dec cl ; dl - 1 sub al, 30h ; get original value shl al, cl ; place in the appropriate bit position or bl, al ; save in bl dec dl ; prepare for the next bit jnz input ; must be 4 bits cmp bl, 9 ja letter jbe number letter: add bl, 37h ; because 'A' - 37h is 0Ah jmp here number: add bl, 30h ; because '0' - 30h is 00h here: call display jmp start display: mov ah, 02h ...
Post a Comment
Read more