converting arrays and strings to each other

1, character array converted to string

Java can use two methods to convert a character array directly into a string.

Method 1: Convert directly when constructing a string.
char[] data = {' A ', ' B ', ' C '};
String str = new string (data);

Method 2: Call the method transformation of the string class.
string.valueof (char[] ch)

2, string array converted to string

If it is "string array" to "string", only through the loop, there is no other way

string[] str = {"abc", "BCD", "def"};

StringBuffer sb = new StringBuffer ();

for (int i = 0; i < str.length; i++) {

SB. Append (Str[i]);

}

String s = sb.tostring ();

3, string converted to character array

This depends on your specific needs. If there is a delimiter of the kind such as "a,b,c"; just split it straight.
String string = "A,b,c";
String [] stringarr= string.split (","); Note that separators are needed to translate the drops ...
If it is a string like "abc", it is directly
String string = "abc";
char [] Stringarr = String.tochararray (); Note The return value is a char array
If you want to return a byte array, use the GetBytes method directly OK ~ ~
String string = "abc";
byte [] Stringarr = String.getbytes ();

4, string converted to string array

/*** * @ClassName: arrayandstring * @Description: TODO (here is a word describing the role of this class) *@authorWilliam_dai * @date August 15, 2018 **/ Public classarrayandstring { Public Static voidMain (string[] args) {/**1, the array is converted to a string*/        //Method 1: Convert directly when constructing a string.         Char[] data = {' A ', ' B ', ' C '}; String Str=NewString (data);                System.out.println (str); //Method 2: Call the method transformation of the string class. String str2 =string.valueof (data);                System.out.println (STR2); /**2, string array converted to string*/        //if it is "string array" to "string", only through the loop, there is no other wayString[] Str3 = {"abc", "BCD", "Def"}; StringBuffer SB=NewStringBuffer ();  for(inti = 0; i < str3.length; i++) {sb. Append (Str3[i]); } String STR4=sb.tostring ();                System.out.println (STR4); /**3, string conversions to arrays*/        //This depends on your specific needs. If there is a delimiter of the kind such as "a,b,c"; just split it straight.String STR5 = "A,b,c"; String [] Strarr= Str5.split (",");  for(inti = 0; i < strarr.length; i + +) {System.out.print (Strarr[i]+" "); }        //if it is a string like "abc", it is directlyString STR6 = "abc" ; Char[] Stringarr = Str6.tochararray ();//Note The return value is a char array         for(inti = 0; i < stringarr.length; i + +) {System.out.print (Stringarr[i]+" "); }        //if you want to return a byte array, use the GetBytes method directly OK ~ ~String STR7 = "abc" ; byte[] Intarr =str7.getbytes ();  for(inti = 0; i < intarr.length; i + +) {System.out.print (Intarr[i]+" "); }        /**4, string converted to string array*/String str8= "Is You OK?"; String [] strArr2= Str8.split ("");  for(inti = 0; i < strarr2.length; i + +) {System.out.println (strarr2[i]); }    }}

converting arrays and strings to each other