上QQ阅读APP看书,第一时间看更新
Test your knowledge
- JShell is:
- A Java 9 REPL.
- An equivalent of
javac
in previous JDK versions. - A Java 9 bytecode decompiler.
- REPL means:
- Run-Expand-Process-Loop.
- Read-Evaluate-Process-Lock.
- Read-Evaluate-Print-Loop.
- Which of the following commands lists all the variables created in the current JShell session:
/variables
/vars
/list-all-variables
- Which of the following commands lists all the methods created in the current JShell session:
/methods
/meth
/list-all-methods
- Which of the following commands lists the source code evaluated so far in the current JShell session:
/source
/list
/list-source