实现:利用Scanner类读取文件 实现代码: publicclassReadFile {publicstaticvoidmain(String argv[]){ String filePath="C:\\Users\\stdbl\\Desktop\\score"; readFileByScanner(filePath); }//读取文件,并排序publicstaticvoidreadFileByScanner(String filePath) {try{//1输入流InputStreamis=newFileInputStream(...
String file = "src/test/resources/fileTest.txt"; Scanner scanner = new Scanner(new File(file)); scanner.useDelimiter(","); assertTrue(scanner.hasNext()); assertEquals("Hello", scanner.next()); assertEquals("World!", scanner.next()); scanner.close(); } 1. 2. 3. 4. 5. 6. 7. 8...
Scanner对象,它附属于”标准输入流 Scanner in = new Scanner(System.in); 现在我们就可以使用Scanner...
Scanner程序使用定界符模式将其输入分为令牌,在本例中为新行: try { // open file to read Scanner scanner = new Scanner(new File("examplefile.txt")); // read until end of file (EOF) while (scanner.hasNextLine()) { System.out.println(scanner.nextLine()); } // close the scanner scanner...
Here is an example program to read a file line-by-line with: ReadFileLineByLineUsingScanner.java packagecom.journaldev.readfileslinebyline;importjava.io.File;importjava.io.FileNotFoundException;importjava.util.Scanner;publicclassReadFileLineByLineUsingScanner{publicstaticvoidmain(String[]args){try{...
public void whenReadWithScanner_thenCorrect() throws IOException { String file = "src/test/resources/test_read.txt"; Scanner scanner = new Scanner(new File(file)); scanner.useDelimiter(" "); assertTrue(scanner.hasNext()); assertEquals("Hello", scanner.next()); assertEquals("world", scanner...
First, we’ll learn how to load a file from the classpath, a URL, or from a JAR file using standard Java classes. Second, we’ll see how to read the content withBufferedReader,Scanner,StreamTokenizer,DataInputStream,SequenceInputStream,andFileChannel. We will also discuss how to read a ...
while (scanner.hasNext()) { 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 ...
1.Scanner Scanner类提供了用Java逐行读取文件的最简单方法。 我们可以使用Scanner类打开文件,然后逐行读取其内容。 Scanner程序使用定界符模式将其输入分为令牌,在本例中为新行: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 try{// open file to readScanner scanner=newScanner(newFile("examplefile.txt"...
现在让我们看下这种解决方案——我们将使用java.util.Scanner类扫描文件的内容,一行一行连续地读取: FileInputStream inputStream = null; Scanner sc = null; try { inputStream = new FileInputStream(path); sc = new Scanner(inputStream, "UTF-8"); ...