A null reference pointer was passed to the stub.
向占位程序传送了空的索引指针。
You see a tooltip that warns about a possible null reference.
您会看到警告有关可能的空引用的工具提示。
How could this reference to a string be causing a Null reference Exception?
这怎么能参考字符串会引起空引用异常？
Finally, say goodbye to the dull, everyday drudgery of null reference exceptions.
最后，告别那些处理空引用异常的枯燥差事吧。
It is reflexive: for any non-null reference value x, x.equals (x) should return true.
具有反射性：对于任何非空的参考值x,x.e quals (x)应该返回真值。
VTL supports a quiet reference notation to avoid rendering nonexistent or null references.
VTL支持一种静态引用符号，以避免呈现不存在的或者空的引用。
Certain paths through the code do fine, but one particular path causes the Null Reference Exception.
某些特定的路径通过代码做的很好，但一个特定的路径引起的空引用异常。
To avoid this problem, you can define a complex type to wrap the value type and set the complex type to be null to indicate a null reference.
为了避免这个问题的出现，您可以定义复合类型来封装数值类型，并将这个复合类型置为空来表示空引用。
Or a reference type variable might not hold a reference to any object, in which case it is said to be a null reference or a reference to Nothing.
或者，引用类型变量可能不存放对任何对象的引用，这种情况称为空引用。
It is transitive: for any non-null reference values x, y, and z, if x.equals (y) returns true and y.equals (z) returns true, then x.equals (z) should return true.
具有传递性：对于任何非空的参考值x、y和z，如果x.e quals (y)返回真值并且y.e quals (z)也返回真值，那么x.e quals (z)也应该返回真值。
Therefore flow developers should not use routing decisions in which variable reference expressions map onto name columns whose values may be NULL.
因此，流开发人员不应该使用变量引用表达式映射到名称列可能为 NULL 的路由决策。
That means a reference type can have a null pointer, but a value type cannot have a null value.
这意味着引用类型可能有空指针，但是数值类型不能有空值。
The cure for object loitering in this case is to null out the reference after popping it from the stack, as shown in the commented-out line of code in Listing 3.
修复这种情况下的对象游离的方法是，当对象从堆栈弹出之后，就消除它的引用，如清单3中注释掉的行所示。
In the case where a retrieved column has a value of SQL NULL, then no XPath variable reference expression is assigned to such a value.
如果检索到的列值为SQLNULL，那么不会给此类值分配任何XPath变量引用表达式。
What you get in your arguments are a reference to the "this" object (this is for object methods and is NULL for plain old functions like bar ) and an argument tuple in args.
您从参数中得到的是一个对“this”对象的引用(this用于对象方法，对类似bar这样的无参数的老式函数来说是NULL)和一个存储在args中的参数元组。
We may not know what type t represents, but we know that the null literal is a valid value for any reference type.
我们可能不知道t类型代表什么，但我们知道null字母对任何引用类型而言是一个空值。
Dead mappings could be eliminated by periodically scanning the map, calling get on each weak reference, and removing the mapping if get returns null.
可以通过周期性地扫描Map，对每一个弱引用调用get，并在get返回null时删除那个映射而消除死映射。
Therefore, if the collector runs before line //2 attaches a strong reference to the re-created object, the object is lost and wr.get() returns null.
因此，如果收集器在行 //2在重新创建的对象上施加一个强引用之前运行，对象就会丢失，wr.get()则返回null 。
Clear: Setting the reference object's referent field to null and declaring the object in the heap that the reference class referred to as finalizable.
清除：将引用对象的referent域设置为 null ，并将引用类在堆中引用的对象声明为 可结束的。
The first two lines of assembly code at B0 and B5 load the instance reference from memory location 049388C8 into eax and test for null.
B0和B5 处的前两行汇编代码将 instance引用从内存位置 049388C8 加载至eax 中，并进行 null 检查。
Second, a failed test should indicate that something unexpected happened (for example, a reference is null) and normal execution can't continue.
其次，失败的测试应当代表发生了意料之外的事（例如，引用为空），正常的执行不能继续。
To take advantage of these reference classes, you must break the strong reference to the MyObject object by setting obj to null.
要利用这些引用类，您必须取消对MyObject对象的强引用，方法是将ob j设置为null。
You might wonder about the String class given the issue of out-of-order writes and a reference becoming non-null prior to the constructor executing. Consider the following code.
鉴于无序写入和引用在构造函数执行前变成非null的问题，您可能会考虑string类。
A weak reference object will keep a reference to an object that went out of scope or was set to null, until it is actually deleted by the garbage collector.
一个弱引用对象将会保持一个指向一个超出作用域或者被置空的对象的引用，直到它确实被垃圾回收删除。
Reference types - same as pointer types, except that a reference type cannot be NULL.
引用类型—与指针类型相同，只是引用类型不能为NULL。
If a pointer pointing to an object not in the graph, then the object is not a reachable object, and then garbage collector sets the slot to null in the short weak reference table.
如果一个指针指向一个不在图中的对象，那么此对象就是一个不可到达的对象，垃圾收集器就将短弱引用表相应的槽置空。
If a pointer pointing to an object not in the graph, then the object is not a reachable object, and then garbage collector sets the slot to null in the long weak reference table.
如果一个指针指向一个不在图中的对象(注意此时图中已包含Finalize可到达的对象)，那么此对象就是一个不可到达的对象，垃圾收集器就将长弱引用表相应的槽置空。
I'd like to change the null value from my objects to a reference, if I can.
我想从我的空值改为参考对象，如果我可以。
I'd like to change the null value from my objects to a reference, if I can.
我想从我的空值改为参考对象，如果我可以。
应用推荐