Java Increment/Decrement Operators

Resulting data type after arithmetic operation

Result = byte + short -> integer

Result = short + integer -> integer

Result = long + float -> float

Result = integer + float -> float

Result = character + integer -> integer

Result = character + short -> integer

Result = long + double -> double

Result = float + double -> double

Increment and Decrement operators

a++, ++a (Increment Operators)
a--, --a (Decrement Operators)

These will operate on all data types except Booleans.

a++ -> first use the value and then increment

++a -> first increment the value then use it

Examples

byte x = 5;
int y = 6;
short z = 8;
int a = y + z;
float b = 6.54f + x;
System.out.println(b);

Output

20.54

int i = 56;
int b = i++; // first b is assigned i (56) then i is incremented
int j = 67;
int c = ++j; // first j is incremented then c is assigned j (68)
System.out.println(i++);
System.out.println(i);
System.out.println(++i);
System.out.println(i);
int y = 7;
System.out.println( ++y *8);
char ch = 'a';
System.out.println(++ch);

Output

57
58
59
59
64
b

Conclusion

In this page (written and validated by A. Gawali) you learned about Java Increment Decrement Operators . What's Next? If you are interested in completing Java tutorial, your next topic will be learning about: Java Strings.

Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue: mockstacks@gmail.com.

Share On:

Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using Mockstacks.com, you agree to have read and accepted our terms of use, cookies and privacy policy.