java - 字符串替换android？

Question

我正在尝试替换一个字符:在生成的系统日期上，以便我可以将其作为标题。它给了我格式:“ago 29, 2013 7:42:19 p.m.”，因此我需要将“:”更改为“”，并用字符串替换。但我不知道该怎么做。非常感谢您的帮助。这是我的代码:

    public void createPDF()
    {
        Document doc = new Document();


         try {
             Date date = new Date();
            String dateTime = DateFormat.getDateTimeInstance().format(date);
             File sdCard = Environment.getExternalStorageDirectory();
             File dir = new File (sdCard.getAbsolutePath() + "/Bitacora");
             dir.mkdirs();
             File file = new File(dir, "Bitácora "+idetotrocliente.getText().toString()+", "+dateTime+etsitio.getText().toString()+".pdf");
             FileOutputStream fOut = new FileOutputStream(file);
                 }
             catch(Exception)
             {

             }
    }

Answer 1

尝试 String.replace(old, new)

String dateTime = "ago 29, 2013 7:42:19 p.m.";
dateTime = dateTime.replace(":", " ");
System.out.println("dateTime : "+dateTime);

输出:dateTime:ago 29, 2013 7 42 19 p.m.