Java read lines from file

Reading in lines from a file java

private ArrayList<String> readFileLines(String filepath) throws FileNotFoundException, IOException{
  File fp = new File(filepath);
  FileReader fr = new FileReader(fp);
  BufferedReader br = new BufferedReader(fr);

  ArrayList<String> lines = new ArrayList<>();
  String line;
  while((line = br.readLine()) != null) { lines.add(line); }

  fr.close();
  return lines;
}

Java read each lines in file

        BufferedReader br = null;
        try {
            File file = new File("myfile.txt"); // java.io.File
            FileReader fr = new FileReader(file); // java.io.FileReader
            br = new BufferedReader(fr); // java.io.BufferedReader
            String line;
            while ((line = br.readLine()) != null) {
              // process the line
            }
          }
          catch(IOException e) { e.printStackTrace();}
          finally
          {
              try { if (br != null) br.close(); }
              catch(IOException e) { e.printStackTrace(); }
          }

Source: stackabuse.com

Java read lines from file

        Scanner sc = null;
        try {
            File file = new File("myfile.txt"); // java.io.File
            sc = new Scanner(file);     // java.util.Scanner
            String line;
            while (sc.hasNextLine()) {
              line = sc.nextLine();
              // process the line
            }
          }
          catch(FileNotFoundException e)
          {
              e.printStackTrace();
          }
          finally {
            if (sc != null) sc.close();
          }

Source: stackabuse.com

Similar codes

0 vote241 views1 answer
Example of "this" : to invoke current class method
Java
1 vote233 views2 answers
Overloading + operator in java
Java
1 vote262 views1 answer
Test if string is float java
Java
0 vote232 views1 answer
Java eliminate numbers from string
Java
0 vote229 views1 answer
Jsp form upload image
Java
1 vote237 views1 answer
How to get logarithm in java
Java
2 votes228 views2 answers
Pass list to intent in android java
Java
4 votes241 views3 answers
Android Dialog
Java
0 vote226 views1 answer
Subtract two variables in java
Java
1 vote225 views1 answer
Spring boot
Java