浅谈java中字符串数组、字符串、整形之间的转换

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();

char[] data = {"abc","bcd","def"};
String s = new String(data);

String str = "123abc";
char[] ar = str.toCharArray();
　　//char数组
for (int i =0;i<ar.length;i++)
{
	　　System.out.println(ar[i]);
	　　//1 2 3 a b c
}
String[] arr = str.split("");
for (int i =0;i<arr.length;i++)　　//String数组，不过arr[0]为空
{
	System.out.println(arr[i]);
	　　//空 1 2 3 a b c
}