整数转换为字符串时会发生什么

Question

I have many times converted a Integer to String but one thing I didn't understood what happens when an integer is converted to string.

For Eg:

if I write int 1 then it is understood that one is numeric value and it can be used for calculations.

When I write String.valueOf(1) how 1 is represented now?

Can any one explain me what will be the Integer state when converted to string?

Thanks for your time

Answer 1

Internally, you can think of it being stored as an array of characters, each character representing a digit.

In this case, you would just have an array of one character, with the ASCII value of '1' , which is 0x31 .

If you want to know the details of exactly what is inside a Java String , you will need to examine the Java source code for String .

Answer 2

string is nothing more than array of char , when you convert a single digit to string it is represented as char variable. it's no different then d or | or % . they are just characters which can't be used in any calculations or operations.