AAD
00:02:00
1 下面有關(guān)java 代碼安全性的敘述哪些是錯的?(選擇一項)
A. 字節(jié)碼校驗器加載查詢執(zhí)行需要的所有類。
B. 運行時解釋器執(zhí)行代碼。
C. 在運行時，字節(jié)碼被加載，驗證然后在解釋器里面運行。
D. 類加載器通過分離本機文件系統(tǒng)的類和從網(wǎng)絡(luò)導(dǎo)入的類增加安全性。
**
2. Which modifier should be applied to a method for the lock of object
   this to be obtaine d prior to excution any of the method body?
A. synchronized
B. abstract
C. final
D. static
E. public
**
3. Which statement of assigning a long type variable to a hexadecimal
   value is correct?
A. long number = 345L;
B. long number = 0345;
C. long number = 0345L;
D. long number = 0x345L
**
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