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How do I convert a byte array to Base64 in Java?
...te[] encoded = Base64.getEncoder().encode("Hello".getBytes());
println(new String(encoded)); // Outputs "SGVsbG8="
byte[] decoded = Base64.getDecoder().decode(encoded);
println(new String(decoded)) // Outputs "Hello"
Or if you just want the strings:
String encoded = Base64.getEncoder().encode...
Java: PrintStream to String?
...presentation of that object. How can I capture this function's output in a String? Specifically, I want to use it as in a toString method.
...
Saving and Reading Bitmaps/Images from Internal memory in Android
...
Use the below code to save the image to internal directory.
private String saveToInternalStorage(Bitmap bitmapImage){
ContextWrapper cw = new ContextWrapper(getApplicationContext());
// path to /data/data/yourapp/app_data/imageDir
File directory = cw.getDir("imageDir"...
Make JQuery UI Dialog automatically grow or shrink to fit its contents
...0px";
private void setWindowSize(int width, int height)
{
string widthScript = "$('.dialogDiv').dialog('option', 'width', " + width +");";
string heightScript = "$('.dialogDiv').dialog('option', 'height', " + height + ");";
ScriptManager.RegisterSta...
C# nullable string error
...
System.String is a reference type and already "nullable".
Nullable<T> and the ? suffix are for value types such as Int32, Double, DateTime, etc.
shar...
Warn user before leaving web page with unsaved changes
...ou can do this by handling the beforeunload event and returning a non-null string:
window.addEventListener("beforeunload", function (e) {
var confirmationMessage = 'It looks like you have been editing something. '
+ 'If you leave before saving, your changes will be l...
What does “Object reference not set to an instance of an object” mean? [duplicate]
...
The following code is a simple way of reproducing this:
static void Main(string[] args)
{
var exampleClass = new ExampleClass();
var returnedClass = exampleClass.ExampleMethod();
returnedClass.AnotherExampleMethod(); //NullReferenceException here.
}
class ExampleClass
{
public Ret...
Typescript: difference between String and string
Does anyone know the difference between String and string in TypeScript? Am I correct in assuming that they ought to be the same?
...
How to use setInterval and clearInterval?
...
Never use strings with setInterval or setTimeout.
– T.J. Crowder
May 12 '11 at 13:19
...
C# 操作MongoDb插入、更新、查询 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ollection != null)
{
foreach (var col in collection)
{
string id = MongoDataHelper.GetString(col, "_id");
}
}
提示函数过期警告：
warning CS0618: “MongoDB.Driver.MongoServer.Create(string)”已过时:“Use MongoClient.GetServer instead.”
解决：
MongoS...