stuart-marks

import java.util.function.IntFunction;
import java.util.stream.IntStream;

public class FizzBuzz {
    static <R> IntFunction<R> ifmod(int m, R r, IntFunction<R> f) {
        return (int i) -> (i % m == 0) ? r : f.apply(i);
    }
            
    public static void main(String[] args) {
        IntStream.rangeClosed(1, 100)

stuart-marks

import java.util.*;
import java.util.function.*;
import java.util.stream.*;

import static java.util.stream.Collectors.*;
import static java.util.Comparator.*;

/**
 * http://stackoverflow.com/questions/22845574/how-to-dynamically-do-filtering-in-java-8
 * 

stuart-marks

package com.kenfogel.performance.loaders;

import java.util.*;
import java.util.concurrent.TimeUnit;
import org.openjdk.jmh.annotations.*;

/**
 * Performs a set of tests to determine the Big-O performance of an array list, array deque,
 * and linked list.
 *

stuart-marks

$ cat Printf.java
public class Printf {
    public static void main(String[] args) {
        System.out.println("Locale.getDefault()=" + java.util.Locale.getDefault());
	    System.out.printf("%.3f%n", 123.45);
    }
}
$ javac Printf.java

$ java -version

stuart-marks

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Optional;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Stream;

// Suppose we have an API where:
//  - a Clazz has a List of Methods,

stuart-marks

package masterclass;

import java.util.*;
import java.util.stream.*;
import java.util.Map.Entry;

import static java.util.Map.entry;
import static java.util.stream.Collectors.*;

public class MasterClass {

stuart-marks

package com.example.readFile.readFileJava;

import java.io.BufferedReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.time.Duration;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Collections;

stuart-marks

--- ReadFileJavaApplicationBufferedReader1.java
+++ ReadFileJavaApplicationBufferedReader2.java
@@ -29,17 +29,12 @@
 
        // get total line count
        Instant lineCountStart = Instant.now();
-       int lines = 0;
 
        Instant namesStart = Instant.now();
        ArrayList<String> names = new ArrayList<>();

stuart-marks

--- ReadFileJavaApplicationBufferedReader0.java
+++ ReadFileJavaApplicationBufferedReader1.java
@@ -57,8 +57,8 @@
                // System.out.println(readLine);
 
                // get all the names
-               String array1[] = readLine.split("\\s*\\|\\s*");
-               String name = array1[7];
+               String array1[] = readLine.split("\\|", 9);
+               String name = array1[7].strip();

stuart-marks

--- ReadFileJavaApplicationBufferedReader2.java
+++ ReadFileJavaApplicationBufferedReader3.java
@@ -44,6 +45,7 @@
        Instant commonNameStart = Instant.now();
        ArrayList<String> firstNames = new ArrayList<>();
 
+         var namePat = Pattern.compile(", \\s*(([^ ]*), |([^ ]+))");
 
          System.out.println("Reading file using " + Caller.getName());