Using bit tests, you can easily test for specific flags on a flagvariable.
使用位测试,可以容易地测试标志变量上的特定标志。
2
Note the use of the w: prefix, which means that the flagvariable is always local to the current window.
注意使用了w:作为前缀,这表示标记变量对于当前窗口来说始终是本地变量。
3
After loading the Properties object, you close the input stream, and then set your Boolean flagvariable (init) value to true, demarcating that the AddressStore object has been initialized.