I have a string variable and another string assigned to the same variable. Then how to get the old row?

Question

Suppose I have a string

msg = "hello"

Now I get the substring from the string msgasmsg.substring(1,msg.length())

And keep that substring in msg.

So msgrefers to a new line. If the old line also remains in the java buffer and yes, then how to access it?

Answer 1

( Java, String msg), ​​(). , , , . .

. , Java 7u6 .

Answer 2

, String.substring() String Java 7 ( 6, IIRC)

, Java:

• Java 7u6, . String.substring()
• Java, char String, char

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substring() . .