java - 在java中将文件中的一行拆分为标记

Question

我目前正在逐个标记地读取文件标记，我想先读取整行，然后将其拆分为标记。这是我通过 token 阅读的代码的一部分:

public void getNextToken(){
     String temp = input.next();        

     if(temp.equals("$")){
         nextToken = Symbols.ENDOFFILE;
     }
     else if(temp.equals("a")){
         nextToken = Symbols.IDENT;
     }
     else if(temp.equals(";")){
         nextToken = Symbols.SEMICOLON;
     }
     else if(temp.equals("const")){
         nextToken = Symbols.CONSTANT;

Answer 1

Scanner scanner = new Scanner(fileName);
while (scanner.hasNextLine()) {
    String[] tokens = scanner.nextLine().split("\\s");
    //do what you want to do with the tokens
}
scanner.close();