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删除java的注释信息

摘要: 删除java的注释信息

内容: import java.util.regex.*;
import java.io.*;
import util9.*;
//某些java文件注释信息过多从而影响了可读性。利用此类可解决这个问题。
//使用方法略。
public class DelNoteInJavaFile {
static BufferedReader br;
static BufferedWriter bw;
static String suffix=".noNote.java";
public DelNoteInJavaFile()
{
String message="input file name:";
String ret=Read9.stringFromControl(message);
if(inJava(new File(ret)))System.out.println("successed");
else System.out.println("failed");
}
public DelNoteInJavaFile(String f)
{
if(inJava(new File(f)))System.out.println("successed");
else System.out.println("failed");
}
public DelNoteInJavaFile(File f)
{
if(inJava(f)) System.out.println("successed");
else System.out.println("failed");
}
public static boolean check(File f)
{
if (!f.exists()) {
System.err.println("wrong1.file not exists");
return false;
}
if (!f.isFile()) {
System.err.println("wrong2.abstract file is not a file");
return false;
}
return true;
}
public static boolean inJava(File f) {
if(check(f)==false ) return false ;
File ff = new File(f.getName() + suffix);
if (ff.exists()) {
System.out.println("wrong3");
return false;
}
String s, ss;
try {
ff.createNewFile();
br = new BufferedReader(new FileReader(f));
bw = new BufferedWriter(new FileWriter(ff));
//the slash is char '/',the star is char '*'.
Pattern slash_star_start = Pattern.compile("/\\*.*");//just like:/*....
Pattern star_slash = Pattern.compile("^.*\\*/");
Pattern slash_star_both = Pattern.compile("/\\*.*\\*/");
Pattern slash2 = Pattern.compile("\\s{0,}//");
// Pattern star = Pattern.compile("\\s{0,}\\*");
Matcher mat;
int i = 0;
boolean note = false;
while ( (s = br.readLine()) != null) {
//deal with such string:... /*...*/....
if(s.trim().length()==0) continue;
s = s.replaceAll(slash_star_both.pattern(), "");
//deal with:....//....
mat = slash2.matcher(s);
if (mat.find()&¬e==false) {
System.out.println("s1="+s);
s = s.substring(0, mat.start());
if (s.trim().length() == 0)continue;
bw.write(s);
bw.newLine();
continue;
}
//deal with:...*/...
mat = star_slash.matcher(s);
if (mat.find()) {
note = false;
System.out.println("s2="+s);
s = s.substring(mat.end());

if (s.trim().length() == 0) {
continue;
}
}
if (note == true) {
continue;
}
//deal with:..../*....
mat = slash_star_start.matcher(s);
if (mat.find()) {
note = true;
System.out.println("s=" + s);
s = s.substring(0, mat.start());
System.out.println("s1=" + s + ",mat.start()=" + mat.start());
if (s.trim().length() == 0) {
continue;
}

}
bw.write(s);
bw.newLine();
}
br.close();
bw.close();
/*
if (f.renameTo(new File(ff.getName() + ".bak"))) {
System.out.println("backup file is:" + ff.getName() + ".bak");
if( ff.renameTo(f))
System.out.println("output file is:"+f.getName());
else {System.out.println("wrong53");return false;}
}
else {
System.out.println("wrong55");
return false;
}
*/
}
catch (IOException e) {
e.getMessage();
return false;
}
return true;
}

public static boolean inJava(String s) {
return inJava(new File(s));
}
public static void main(String a[])
{if(a.length==0)new DelNote9();
else new DelNoteInJavaFile(a[0]);
}
}
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