It is therefore important that your code checks a return value is not an empty handle before continuing execution.
所以在继续执行前，在代码中检查返回值是否为一个空句柄是非常重要的。
Also keep all cancelled checks and credit card receipts for all rental expenses deducted on your tax return.
同时，保管好作废的支票和纳税申报表要扣除的租金开支费用的信用卡记录。
Instead, Seam checks whether the return value of the action is a valid view template (technically a view id) and performs a dynamic navigation if it is.
取而代之，Seam检查操作的返回值是不是有效的视图模板(技术上称之为视图id)，并对其执行动态导航。
In Listing 3, the PIDs are printed out at each step, and the code checks the return value from fork to determine which process is the parent and which is the child.
清单3在每个步骤打印出pid，并且该代码检查从fork返回的值来确定哪个进程是父进程，哪个进程是子进程。
When the sequence gets to the return value "balance," it checks to see if the balance is less than the amount.
当序列到达返回值“balance”的时候，它检查看看是否余额比金额更少。
The CompanySystemContractManager class in Listing 4 checks only if arguments or return values are null, but it's possible to enhance it to add extremely sophisticated checks.
清单4中的CompanySystemContractManager类只检查参数或者返回值是否为nulll，但是可以使其增强为加入特别复杂的检查。
This rule set contains some of the more questionable checks, including assigning null to a variable, multiple return points from a method, and importing from the sun packages.
这个规则集包含一些更有问题的检验，其中包括把null赋值给变量、方法中有多个返回点，以及从sun包导入等。
Checks the return from the named query.
检查从已命名查询返回的结果。
To return to the ATM example, the crosscutting functionality checks the caller's security credentials.
回到AT M的例子，横切功能检查调用者的安全凭证。
To return to the ATM example, the crosscutting functionality checks the caller's security credentials.
回到AT M的例子，横切功能检查调用者的安全凭证。
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