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CharIO.java
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CharIO.java
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import java.io.*;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Arrays;
public class CharIO {
public static void main(String[] args) throws FileNotFoundException, IOException {
FileReader fileReader = new FileReader("1.txt");
FileInputStream fileInputStream = new FileInputStream("1.txt");
// File f = new File("LearnGenerics.class");
// byte[] bytes = Files.readAllBytes(Paths.get("LearnGenerics.class"));
// FileWriter fileWriter = new FileWriter("/Users/pratyushsharma/IdeaProjects/Test/1.txt");
// fileWriter.append("Sharma123");
// fileWriter.flush();
// int i = 1;
// while ((i= fileReader.read())>0) {
// System.out.print((i+" "));
// }
// System.out.println("---");
// i = 1;
// while ((i= fileInputStream.read())>0) {
// System.out.print((i+" "));
// }
try (BufferedReader reader = Files.newBufferedReader(Paths.get("1.txt"))) {
String line = null;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
} catch (IOException x) {
System.err.format("IOException: %s%n", x);
}
}
}
// static Boolean isJavaClassFile(String fileName) throws IOException {
// String magic = "cafebabe";
// Byte[] magicArr = {0xC,0xA,0xF,0xE,0xB,0xA,0xB,0xE};
//
// System.out.println(magicArr.length);
// FileInputStream fileInputStream = new FileInputStream(fileName);
// byte[] fileArr8 = fileInputStream.readNBytes(8);
//
// int compare = (Arrays.compare(magicArr, fileArr8));
// System.out.println("magicarr " + Arrays.toString(magicArr));
// for (byte b : fileArr8){
// System.out.print((b & 0xFF)+" ");
// }
// System.out.println("comp - " + compare);
// if (compare == 0) return true;
// return false;
// }