String[],String与list之间的转换

1. String[] 转换成list

               

String[] str = {"a","b","c"};
List<String> list = new ArrayList<String>();
for(int i=0;i<str.length;i++){
	list.add(str[i]);
}
//list为[a,b,c]
		

 

2. list 转 String[]

String[] str2 = list.toArray(new String[0]);
for (String string : str2) {
	System.out.println(string);
}//str2 = [a,b,c]

3 . list 转 String
        

String result = StringUtils.join(list,",");
//result为  a,b,c

4. String 转 list

String str4 = "a,b,c";
str4.split(",");
list = Arrays.asList(str4);
System.out.println(list);//[a,b,c]

 

5. String 转 String[]

String[] str5 = str4.split(",");
for (String string : str5) {
		System.out.println(string);
}//[a,b,c]

 

6. String[] 转 String

String str6 = StringUtils.join(str5, ",");
System.out.println(str6);//a,b,c