String[]与List的相互转换

1 2	String[] arr = new String[]{"s1","s2","s3"}; List<String> list = Arrays.asList(arr);

List<String> list = new ArrayList<String>();

list.add("s1");

list.add("s2");

list.add("s3");

String[] arr = list.toArray(new String[list.size()]);

字符数组char[]和字符串String之间的转换

void (){

char[] s={'A','G','C','T'};

String st=String.valueOf(s);

System.out.println("This is : "+st);

}

>> This is : AGCT

String str="AGCT";

char[] s=str.toCharArray();

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

System.out.println("This s[i] "+i+s[i]);

}

This s[i] 0 A

This s[i] 1 G

This s[i] 2 C

This s[i] 3 T

from:https://blog.csdn.net/qq_41076577/article/details/106909006