Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class Main {

    public static void main(String... args) throws IOException {
        String oneLine = processFile((BufferedReader b) -> b.readLine());
        System.out.println(oneLine);

        String twoLines = processFile((BufferedReader b) -> b.readLine() + b.readLine());
        System.out.println(twoLines);

    }

    public static String processFile(BufferedReaderProcessor p) throws IOException {
        try (BufferedReader br = new BufferedReader(new FileReader("lambdasinaction/chap3/data.txt"))) {
            return p.process(br);
        }

    }
}

interface BufferedReaderProcessor {
    public String process(BufferedReader b) throws IOException;

}