In Java code community
Some traps may look a bronze
In fact king
It is said that 97% of engineers will be "spike"
Distrust?
There are five "basic problem"
Called the five tender trap
Specious, smoke and mirrors
Real skill test time has come to!
01 The results of this code is output:
A: true
B: false
C: is determined by the hardware instruction
02 This result code is output:
A: true
B: false
C: Compile error
03 Which of the following is true:
A: null
B: throw an exception
C: default
04 Which of the following is true:
A: The two assignment is the same way
B: Recommended a way of assignment
C: b Recommended assignment mode
5 Which of the following statements is wrong:
A: lock lock non-fair
B: finally block does not throw
C: tryLock acquire the lock fails performed directly down
You think it over yet? Fill in the answers in the comments below the district oh:
Secretly tell you a little secret: the above five questions stems from the fact that the industry's classic failure, after the majority of developers in-depth discussion from refining. Similar to solve problems and ideas behind it.
Original link weixin.qq.com