写一个去除文章里某些固定的字符串的java程序
\uff08Java\uff09\u7f16\u5199\u4e00\u4e2a\u7a0b\u5e8f,\u4ece\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u4e2d\u5220\u9664\u6240\u6709\u51fa\u73b0\u67d0\u4e2a\u6307\u5b9a\u5b57\u7b26\u4e32\u7684\u5730\u65b9\u989d\uff0c\uff0c\u56e0\u4e3a\u4f60\u64cd\u4f5c\u7684\u662f\u540c\u4e00\u4e2a\u6587\u4ef6\uff0c\uff0c\uff0c
\u5f53PrintWriter output=new PrintWriter(file);
\u7684\u65f6\u5019\uff0c\u5047\u5982\u6587\u4ef6\u5b58\u5728\u4f1a\u6e05\u7a7a\u3002\u3002\u3002\u3002\u6240\u4ee5\u4f60\u4ec0\u4e48\u90fd\u8bfb\u4e0d\u5230\u3002\u3002
\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u5c31\u662f\u8bfb\u53d6\u8f93\u5165\u6d41\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7136\u540e
public void remove() {String s = "This is a text file, some text would be removed, text left would be kept";String result = s.replaceAll("text", "");System.out.println(result);}
public static void main(String[] args) {
String s1="abcdefg abcdewq fdgkj,abcdefg,befuasx";//你的文章
String s2="abcdefg";//要被替换的关键字
String s3="";//要替换成的关键字 去除就意味着替换成空字符串
System.out.println(s1);//输出替换前的原文章
s1=s1.replace(s2, s3);//替换操作
System.out.println(s1);//输出替换后的结果
}
}
结果：
abcdefg abcdewq fdgkj,abcdefg,befuasx
abcdewq fdgkj,,befuasx
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
public class ReplaceText {
public static void main(String[] args ) throws Exception {
File source = new File("d:/abc.txt");
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(source)));
File desc = new File("d:/a.txt");
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(desc)));
String str = null;
while ((str = in.readLine()) != null) {
str = str.replace("abcdefg", "");
out.write(str + "\r\n");
}
out.close();
in.close();
source.delete();
desc.renameTo(source);
}
}
感觉用 substring 与indexof 两个方法应该可以
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