我有一个文件test.txt
outputa
outputb
outputc
outputa
outputb
outputc
我需要这样的输出:
outputaoutputboutputc
outputaoututboutputc
在每次出现outputa时,都应断开行。
答案 0 :(得分:-1)
可能不完全是您想要的,但这应该可以帮助您入门:
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
public class FileTransformer {
public static void main(String args[]) throws IOException {
String s1 = readFile("test.txt");
s1 = transform(s1, args[0]);
writeFile(s1);
}
private static String readFile(String fileName) throws IOException {
return new String(Files.readAllBytes(Paths.get(fileName)));
}
private static String transform(String input, String elementToStartNewLine) {
return input.replace("\n", "").replace(elementToStartNewLine, "\n" + elementToStartNewLine);
}
private static void writeFile(String content) throws IOException {
Files.write(Paths.get("output.txt"), content.getBytes());
}
}
用法:java FileTransformer输出a