ryoasai

package seqtest;

//メイン処理。
public class Main {
	private static final int TASK_COUNT = 1000000;

	public static void main(String[] argv) {
		// 非同期タスクたちを順番に実行させる。
		SequentialAsyncTask[] tasks = new SequentialAsyncTask[TASK_COUNT];

ryoasai

public class BinaryStringPrinter {

	public static void print(byte value) {
		System.out.println(zeroPadding(8, Integer.toBinaryString(value)));
	}

	public static void print(short value) {
		System.out.println(zeroPadding(16, Integer.toBinaryString(value)));
	}

ryoasai

String.metaClass.destructiveReverse << {
    def chars = delegate.value;
    chars.eachWithIndex {e, i ->
      chars[- i - 1] = e
    }
}

def s = 'groovy'
s.destructiveReverse()
assert s == 'yvoorg'

ryoasai

package com.github.ryoasai;

import java.util.Date;

import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

import org.joda.time.DateMidnight;
import org.springframework.format.annotation.DateTimeFormat;

ryoasai

package com.github.ryoasai;

import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;

import java.util.List;

import org.hamcrest.Matcher;
import org.junit.Test;
import org.springframework.beans.BeanWrapper;

ryoasai

import java.lang.reflect.*;

public class Outer {

    private String outer = "outer";

    public class Inner {
        public void hello() {
            System.out.println("Hello World" + outer); // NullPointerException at this line.
        }

ryoasai

package com.github.ryoasai;

import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;

ryoasai

import java.util.ArrayList;
import java.util.List;

/**
 * <p>Demonstrating why the Object.getClass() method's return type should be
 * Class<? extends |T|> but not Class<? extends T>, where |T| is the erasure
 * of the static type T. </p>
 * <p>
 * Type parameter of every Class instance should always be reifiable type
 * or wildcard type with reifiable upper bound.

ryoasai

import static org.junit.Assert.*;

import java.lang.reflect.Field;
import java.lang.reflect.GenericArrayType;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.lang.reflect.WildcardType;
import java.util.List;

ryoasai

import java.lang.reflect.Field;
import java.lang.reflect.GenericArrayType;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;

public class GenericTypeSample {
	public List<Integer>[] testField;
	
	public static void main(String[] args) throws Exception {