请教前辈,readLine之后怎么保存到String数组里面呢?我实在是做不出来了.
像这样:
"String[] oldFile = {"A", "AB", "ABC", "ABCD", "ABCDE"};"
import java.io.*;
public class T {
public static void main(String[] args)throws Exception {
BufferedReader br = new BufferedReader(new FileReader("D:\\oldFile.log"));
String s = null;
while((s = br.readLine()) != null) {
savaF(s);
}
br.close();
}
public static void savaF(String s) {
System.out.println(s);
}
}
像这样:
"String[] oldFile = {"A", "AB", "ABC", "ABCD", "ABCDE"};"
import java.io.*;
public class T {
public static void main(String[] args)throws Exception {
BufferedReader br = new BufferedReader(new FileReader("D:\\oldFile.log"));
String s = null;
while((s = br.readLine()) != null) {
savaF(s);
}
br.close();
}
public static void savaF(String s) {
System.out.println(s);
}
}
List<String> list = new ArrayList<String>();public static void savaF(String s) {
System.out.println(s);
list.add(s);
} // 如果你需要数组,可以转换
public String[] getStringFromList(){
return (String[])list.toArray(new String[0]);
}
List<String> list = new ArrayList<String>();改成// 保存到列表里面
private static List<String> list = new ArrayList<String>();
public String[] getStringFromList(){
return (String[])list.toArray(new String[0]);
}return (String[])list.toArray(new String[0]); 这句话看不明白呢?
"(String[])"这个是强制转换吗?
"new String[0]"这个啥意思呢?
我找资料再看看吧
谢谢大家了