Question

当删除isLetter()方法时，一切正常，但是当我添加它时会出错。我在main方法中删除了私有。请帮忙。提前谢谢。

import java.io.*;
class WordCounter{

public static void main(String args[]){
    File file_in_obj = new File("E:/Problems","notes.txt");
    File file_out_obj = new File("E:/Problems","notes_sorted.txt");

    boolean isLetter(char let){
        return ( let>= 'a'&& let <= 'z') || ( let >= 'A' && let <='Z');
    }

    try(BufferedReader fin = new BufferedReader(new FileReader(file_in_obj));
    BufferedWriter fout = new BufferedWriter(new FileWriter(file_out_obj));){

    String array[]=new String[500];
    char ch[]=new char[25];
    int rd,k=0;
    String line=null;

        /*do{
            rd=fin.read();
            if(Character.isWhitespace((char)rd))
                fout.write(" ");
            else if(Character.isLetter((char)rd)){

                    fout.write((char)rd);
                }
        }while(rd!=-1); */

        while((line=fin.readLine())!=null){
            //  System.out.println(j++);
            String[] tokens = line.split ("\\s+"); 
            for(int i = 0; i < tokens.length; i++){
                    array[k]=tokens[i];
                    fout.write(array[k]+" ");
                    k++;
                    //System.out.println(tokens.length);
            }

        }
        for(int p=0;p<k;p++){
            for(int i=0;i<array[p].length();i++){
                if(Character.isLetter(array[p].charAt(i)))
                    System.out.print(array[p].charAt(i));
            }
            System.out.println(p);
        }

    /*for(int j=tokens.length;j>1;j--)
    for(int i=0;i<j-1;i++){
        if(tokens[i].compareTo(tokens[i+1])>0){
                String temp=tokens[i+1];
                tokens[i+1]=tokens[i];
                tokens[i]=temp;
        }
    }*/

    } catch(IOException e){
        System.out.println("I/O Exception occured");
    }

}
}

Answer 1

您无法在其他方法中使用方法。试试这个：

      <plugin>
        <groupId>com.mysema.maven</groupId>
        <artifactId>apt-maven-plugin</artifactId>
        <executions>
          <execution>
            <goals>
              <goal>process</goal>
            </goals>
            <configuration>
              <outputDirectory>target/generated-sources/java</outputDirectory>
              <processor>com.querydsl.apt.morphia.MorphiaAnnotationProcessor</processor>
            </configuration>
          </execution>
        </executions>
      </plugin>

错误：; expected（Java中的编译错误）

1 个答案: