利用java帮我编个程序
来源:百度知道 编辑:UC知道 时间:2024/06/24 05:40:44
//就是这个啦~~
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class StringFinder {
public static void main(String[] args) throws IOException {
File file = new File(args[0]);
String con = args[1];
BufferedReader breader = null;
FileReader freader = null;
int lineNum = 0;
try {
freader = new FileReader(file);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
if (freader != null) {
breader = new BufferedReader(freader);
String line = null;
while((line = breader.readLine()) != null) {
lineNum ++;
if(line.contains(con)) {
System.out.println("第" + lineNum + "行: " + line);
}
}
}
}
}