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    @NonNull
    private String getMemoryString() {
        int memoryClass = ((ActivityManager) getSystemService(ACTIVITY_SERVICE)).getMemoryClass();
        int largeMemoryClass = ((ActivityManager) getSystemService(ACTIVITY_SERVICE)).getLargeMemoryClass();

        // メモリ情報を取得
        ActivityManager activityManager = (ActivityManager)getSystemService(ACTIVITY_SERVICE);
        ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
        activityManager.getMemoryInfo(memoryInfo);

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public class MultiLineSwitchPreference extends SwitchPreference {

    public MultiLineSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

    public MultiLineSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

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System.out.println("test");

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package models;

import play.mvc.*;
import play.libs.*;
import play.libs.F.*;

import scala.concurrent.Await;
import scala.concurrent.duration.Duration;
import akka.actor.*;
import static akka.pattern.Patterns.ask;

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public static WebSocket<JsonNode> chat(final String username) {

    return new WebSocket<JsonNode>() {
        // Called when the Websocket Handshake is done.
        public void onReady(WebSocket.In<JsonNode> in, WebSocket.Out<JsonNode> out){

            // Join the chat room.
            try { 
                ChatRoom.join(username, in, out);
            } catch (Exception ex) {

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public static WebSocket<JsonNode> chat(final String username) {
    return new WebSocket<JsonNode>() {

        // Called when the Websocket Handshake is done.
        public void onReady(WebSocket.In<JsonNode> in, WebSocket.Out<JsonNode> out){

            // Join the chat room.
            try { 
                ChatRoom.join(username, in, out);
            } catch (Exception ex) {

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public static Result chatRoom(String username) {
    if(username == null || username.trim().equals("")) {
        flash("error", "Please choose a valid username.");
        return redirect(routes.Application.index());
    }
    return ok(chatRoom.render(username));
}

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package references;

import java.lang.ref.*;

public class Main {

    public static void main(String[] args) {

        Sheryl strongRef = new Sheryl();//①
        WeakReference<Sheryl> weakRef = new WeakReference<Sheryl>(strongRef);//②

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export HEROKU_API_KEY=xxxxxxxxxxxxxx

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NSLog(@"Hello World");