How do I read a file in classpath?

Place the directory of file ( D:\myDir )in CLASSPATH and try below: InputStream in = this. getClass(). getClassLoader()….

  1. The file path isn’t any use if the resource is in a JAR or WAR file.
  2. The getFile method of URL does not return a file name.

How do I read a file from FileInputStream?

Java FileInputStream example 1: read single character

  1. import java.io.FileInputStream;
  2. public class DataStreamExample {
  3. public static void main(String args[]){
  4. try{
  5. FileInputStream fin=new FileInputStream(“D:\\testout.txt”);
  6. int i=fin.read();
  7. System.out.print((char)i);
  8. fin.close();

How do you reference a resource file in Java?

In Java, we can use getResourceAsStream or getResource to read a file or multiple files from a resources folder or root of the classpath. The getResourceAsStream method returns an InputStream . // the stream holding the file content InputStream is = getClass().

What is classpath file in Java?

classpath maintains the project’s source and target references for Java compilation and compressed file or project dependencies. This configuration is maintained through the Java Build Path page in the project’s properties.

How do you read a string from a file in Java?

The readString() method of File Class in Java is used to read contents to the specified file. Return Value: This method returns the content of the file in String format. Note: File. readString() method was introduced in Java 11 and this method is used to read a file’s content into String.

How do I add something to my classpath?

GUI:

  1. Select Start.
  2. Go to the Control Panel.
  3. Select System and Security.
  4. Select Advanced System settings.
  5. Click on Environment Variables.
  6. Click on New under System Variables.
  7. Add CLASSPATH as variable name and path of files as a variable value.
  8. Select OK.

What does read () do in java?

read() method reads the next byte of the data from the the input stream and returns int in the range of 0 to 255. If no byte is available because the end of the stream has been reached, the returned value is -1.

How do I read a resource file?

Read a File from Resources Folder in Java

  1. Using Java getResourceAsStream()
  2. Using FileReader.
  3. Using Files.newBufferedReader()
  4. Using Files.lines()
  5. Using DataInputStream.
  6. Using FileChannel.
  7. Summary.

How do I read a jar file resource?

To access a file in a jar you have two options:

  1. Place the file in directory structure matching your package name (after extracting . jar file, it should be in the same directory as .
  2. Place the file at the root (after extracting . jar file, it should be in the root), then access it using Thread.

https://www.youtube.com/watch?v=M_5o4Ixb-8U