Read file using FileInputStream

   

import java.io.File;
import java.io.FileInputStream;

public class Main {
  public static void main(String[] args) throws Exception {
    File file = new File("C:/String.txt");
    StringBuffer strContent = new StringBuffer();
    FileInputStream fin = new FileInputStream(file);
    int ch;
    while ((ch = fin.read()) != -1) {
      strContent.append((char) ch);
    }
    fin.close();
    System.out.println(strContent);
  }
}

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Read file using FileInputStream : FileInputStream « File Input Output « Java

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