小编H4S*_*4SN的帖子

我可以在apache POI中使用以下代码更改前景色.现在我想更改单个单元格的字体颜色.

CellStyle style = wb.createCellStyle();
                        style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
                        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
                        cell = rowxl.createCell((short) 7);
                        cell.setCellValue(" <<<<ONTRACK>>>>");
                        cell.setCellStyle(style);


                        rowxl.createCell(0).setCellValue(TEAM);

我试过这个,但它没有改变前两列的颜色

码:

public class fclr {
     public static void main(String[] args)  throws Exception {

         InputStream inp = new FileInputStream("c:/workbook1.xls");
            Workbook wb = WorkbookFactory.create(inp);
            CreationHelper createHelper = wb.getCreationHelper();
            Sheet sheet = wb.getSheetAt(0);
            Row rowxl = sheet.createRow((short)0);


            Cell cell = rowxl.createCell(0);

            //apply some colors from the standard palette,
            // as in the previous examples.
            //we'll use red text on a lime background

            CellStyle style = wb.createCellStyle(); …

我无法使用 adb 连接到我的手机。我收到以下错误：

D:\softwares\Development\Android\android-sdk-windows\platform-tools>adb devices -l
List of devices attached
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
error: protocol fault (couldn't read status): Invalid argument

http://s18.postimg.org/7fdc8w9dl/screenshot_97.png

以前我在 Windows 8.1 中遇到此错误，然后我安装了 Windows 10 并解决了错误，但现在我再次无法将手机与 adb 连接:(。

即使没有连接任何设备，我也会收到此错误。

日食错误：

[2015-10-24 13:25:02 - ddms] Failed to initialize Monitor Thread: Unable to establish loopback connection
[2015-10-24 13:25:02 - adb] error: protocol fault (couldn't read status): Invalid argument
[2015-10-24 13:25:02 - ddms] 'D:\softwares\Development\Android\android-sdk-windows\platform-tools\adb.exe,start-server' failed -- run …

从这个代码我可以生成10条现在的条形图现在我想知道如何在条形图上显示每个条形的值,如附加图像:

这是代码:

public class BarChartSample extends Application {


    @Override public void start(Stage stage) {
        stage.setTitle("Bar Chart Sample");
        final CategoryAxis xAxis = new CategoryAxis();
        final NumberAxis yAxis = new NumberAxis();
        final BarChart<String,Number> bc = 
            new BarChart<String,Number>(xAxis,yAxis);
        bc.setTitle("Country Summary");
        xAxis.setLabel("bars");       
        yAxis.setLabel("Value");

        XYChart.Series series1 = new XYChart.Series();
        series1.setName("...");       

for(int i=0;i<10;i++)
{
   //here i want to change color of bar if value of i is >5 than red if i>8 than blue 
series1.getData().add(new XYChart.Data("Value", i));

}          

}

public static void main(String[] args) {
        launch(args); …

这是我的代码,它生成从0到10的10个值的条形图.我想改变条形的颜色如下

如果我> 5颜色==红色,如果我> 8颜色==蓝色

所以最终输出将是0-5(默认黄色条)6-8(红色条)9(蓝色条)

请帮助我..谢谢

public class BarChartSample extends Application {

    @Override
    public void start(Stage stage) {
        stage.setTitle("Bar Chart Sample");
        final CategoryAxis xAxis = new CategoryAxis();
        final NumberAxis yAxis = new NumberAxis();
        final BarChart < String, Number > bc = new BarChart < String, Number > (xAxis, yAxis);

        bc.setTitle("Country Summary");
        xAxis.setLabel("bars");
        yAxis.setLabel("Value");
        XYChart.Series series1 = new XYChart.Series();
        series1.setName("...");

        for (int i = 0; i < 10; i++) {
            //here i want to change color of bar if value of …

在发送电子邮件时,我使用commons-email-1.3收到以下错误.
我已经下载并添加了外部jar到项目中.
请帮我解决这个问题!

package mypkg;

import org.apache.commons.mail.DefaultAuthenticator;
import org.apache.commons.mail.Email;
import org.apache.commons.mail.SimpleEmail;

public class sendingmail {
     public static void main(String[] args)  throws Exception {
            Email email = new SimpleEmail();
            email.setSmtpPort(587);
            email.setAuthenticator(new DefaultAuthenticator("myid","mypwd")); //Here is the error
            email.setDebug(false);
            email.setHostName("smtp.gmail.com");
            email.setFrom("me@gmail.com");
            email.setSubject("Hi");
            email.setMsg("This is a test mail ... :-)");
            email.addTo("you@gmail.com");
            email.setTLS(true);
            email.send();
            System.out.println("Mail sent!");

    }
}

给出错误的行是

email.setAuthenticator(new DefaultAuthenticator("myid","mypwd"));

错误消息是

线程"main"中的异常java.lang.Error:未解决的编译问题:

无法解析javax.mail.Authenticator类型.它是从所需的.class文件间接引用的.来自
类型Email的方法setAuthenticator(Authenticator)是指mypkg.mailtest.main中缺少的类型Authenticator(mailtest.java:13)

我想要实现的是当用户触摸UIImageView设置Image1时,当用户抬起他的手指设置Image2时.

我只能使用此代码获取UIGestureRecognizerState.Ended

 var tap = UITapGestureRecognizer(target: self, action: Selector("tappedMe:"))     

        imageView.addGestureRecognizer(tap)
        imageView.userInteractionEnabled = true

func tappedMe(gesture: UITapGestureRecognizer)
{

    if gesture.state == UIGestureRecognizerState.Began{
        imageView.image=originalImage
        dbgView.text="Began"
    }else if  gesture.state == UIGestureRecognizerState.Ended{
        imageView.image=filteredImage
        dbgView.text="Ended"
    }else if  gesture.state == UIGestureRecognizerState.Cancelled{
        imageView.image=filteredImage
        dbgView.text="Cancelled"
    }else if  gesture.state == UIGestureRecognizerState.Changed{
        imageView.image=filteredImage
        dbgView.text="Changed"
    }

}

我正在尝试从 onOptionsItemSelected 开始一个新的活动（设置活动），但是当我点击选项二时我得到了致命的异常，它开始设置活动一段时间而不是崩溃。

如果我从其他任何地方启动 Settings Activity 而不是它开始时没有任何错误。

设置活动

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class SettingsActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_settings);
    }



}

第一个活动（Room1.java）：

 @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_room1);
    }


@Override
        public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflator = getMenuInflater();
        inflator.inflate(R.menu.room1, menu);
        return true;
        }



    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

            if(item.getItemId()==R.id.menu_option_two){
               Settings();
               Log.d("Option","2");

            }
            return super.onOptionsItemSelected(item);
    }

    private void Settings() {
            Intent intent = new Intent(this, SettingsActivity.class);
            startActivity(intent) ; …