9. Read a file into a String We can make good use of StringBuilder to read the entire contents of a file into a String. Let’s start with the file: 1 2 3 Hello world Test line The following code append data read from the file into a StringBuilder line by line: 1 2 3 4 5 6...
Filefile=newFile("c:/temp/demo.txt");Stringcontent=com.google.common.io.Files.asCharSource(file,Charsets.UTF_8).read(); Use any of the above-given methods for reading a file into a string using Java. Happy Learning !! Source Code on Github...
//Example 1//Read file content into string with - Files.lines(Path path, Charset cs)privatestaticStringreadLineByLineJava8(String filePath){StringBuilder contentBuilder=newStringBuilder();try(Stream<String>stream=Files.lines(Paths.get(filePath),StandardCharsets.UTF_8)){stream.forEach(s->contentBu...
private static String readAllBytesJava7(String filePath){String content="";try{content=newString(Files.readAllBytes(Paths.get(filePath)));}catch(IOException e){e.printStackTrace();}returncontent;}//Example 3 //Read file content into string with - using BufferedReader and FileReader //You can ...
Rarely in my career have I written significant amounts of Java, so when Idouse it I’m always learning new things. I thought this unique way to use Scanner to read a text file into a string was great: import java.util.Scanner; String contents = new Scanner(new File(fileName)).useDeli...
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public static void main(String[] args) throws Exception { FileReader fr = new FileReader( "C:\\Users\\pankaj\\Desktop\\test.txt"); int i; while ((i = fr.read()) != -1) System.out.print((char)i); } } 1. 2. 3. 4. ...
A. Reader类的read()方法用来从源中读取一个字符的数据 B. Reader类的read(int n )方法用来从源中读取一个字符的数据 C. Writer类的write(int n)方法用来向输出流写入单个字符 D. Writer类的write(String str)方法用来向输出流写入一个字符串
String line = scanner.nextLine(); System.out.println(line); } The file is read line by line with thenextLinemethod. Read text file with InputStreamReader InputStreamReaderis a bridge from byte streams to character streams. It reads bytes and decodes them into characters using a specified cha...
*@paramfilePath * 文件路径[到达文件:如: D:\aa.txt] *@return将这个文件按照每一行切割成数组存放到list中。*/publicstaticList<String>readTxtFileIntoStringArrList(String filePath) { List<String> list =newArrayList<String>();try{ String encoding= "GBK"; ...