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ReadFileStream.java
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55 lines (46 loc) · 1.59 KB
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package readfile;
import java.io.BufferedReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class ReadFileStream {
static String fileName = "d:/lines.txt";
public static void main(String[] args) {
readFileGen();
System.err.println("<---------------------------------------------------------------->");
readFileGenExtra();
System.err.println("<---------------------------------------------------------------->");
linesMethod();
String den = "deneme";
den.chars().mapToObj(x -> (char)x).forEach(System.out::println);
}
private static void readFileGen() {
try(Stream<String> stream = Files.lines(Paths.get(fileName))){
stream.forEach(System.out::println);
}catch (IOException e) {
e.printStackTrace();
}
}
private static void readFileGenExtra() {
List<String> list = new ArrayList<>();
try(Stream<String> stream = Files.lines(Paths.get(fileName))){
list = stream.filter(line->!line.startsWith("line3")).map(String::toUpperCase).collect(Collectors.toList());
}catch (IOException e) {
e.printStackTrace();
}
list.forEach(System.out::println);
}
private static void linesMethod() {
List<String> list = new ArrayList<>();
try(BufferedReader br = Files.newBufferedReader(Paths.get(fileName))){
list = br.lines().collect(Collectors.toList());
}catch (IOException e) {
e.printStackTrace();
}
list.forEach(System.out::println);
}
}