However, it’s important to remember to close theBufferedReaderonce you’re done to prevent memory leaks. This is done using theclose()method, as shown in the example above. If you’re using Java 7 or later, you can take advantage of the try-with-resources statement, which automatically ...
在Java I/O书上也说了: public String readLine() throws IOException This method returns a string that contains a line of text from a text file. /r, /n, and /r/n are assumed to be line breaks and are not included in the returned string. This method is often used when reading user i...
24. public void execute(SelectionKey key) { 25. // TODO Auto-generated method stub 26. 27. if (key.isReadable()) { 28. 29. try { 30. while(true) { 31. buf.clear(); 32. int n = sc.read(buf); 33. if (n > 0) { 34. sum += n; 35. "sum=" + sum + " n=" + n...
public String readLine() throws IOException This method returns a string that contains a line of text from a text file. /r, /n, and /r/n are assumed to be line breaks and are not included in the returned string. This method is often used when reading user input from System.in, since...
() method: ");24String contentLine ;25List<String> arr1 =newArrayList<>();26while((contentLine = br.readLine()) !=null) {27//contentLine = br.readLine();28//读取每一行,并输出29System.out.println(contentLine);30//将每一行追加到arr131arr1.add(contentLine);32}33//输出数组34System....
在Java I/O书上也说了: public String readLine() throws IOException This method returns a string that contains a line of text from a text file. /r, /n, and /r/n are assumed to be line breaks and are not included in the returned string. This method is often used when reading user ...
This method blocks until a newline character is read, a carriage return and the byte following it are read (to see if it is a newline), the end of the file is reached, or an exception is thrown. Java documentation forjava.io.RandomAccessFile.readLine(). ...
import java.io.IOException;import java.io.InputStreamReader;public class ReadLine { public static void main(String[] args) { // TODO Auto-generated method stub System.out.print("请输入值:");BufferedReader boy=new BufferedReader(new InputStreamReader(System.in));String mystring=null...
Java documentation forjava.io.BufferedReader.readLine(). Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution License. ...
at com.demo.Demo.main(Demo.java:49) Because it's programmed that way. Really, it's what the user of the method wants. If the last line is missing a line separator at the end, it will read until EOF so that no data is lost. You don't want to lose an entire line because of ...