Eclipse Usage Tips Compilation

• Modify Eclipse Default JDK

"Window"---"Preferences ..." (preferences), and then on the left side of the dialog box that pops up: Select Java---installed JREs to add and modify the JDK on the right

• Why is a lambda expression not supported for a version with more than jdk1.8 installed?

Because the current eclipse version is too low, to support lambda expressions, you also need to install the IDE that supports lambda expression, the best version is to download the latest version of Eclipse, see the official Java documentation for details http://www.oracle.com/ Technetwork/cn/articles/java/lambda-1984522-zhs.html

• Gets the currently executing function name, class name, and file name of the current class

Current function Name: Thread.CurrentThread (). Getstacktrace () [1].getmethodname ();

Current class Name: Thread.CurrentThread (). Getstacktrace () [2].getclassname ();

Current file name: Thread.CurrentThread (). Getstacktrace () [2].getfilename ();

• Single-Step debugging

(F5) Step execution procedure, enter when encountering method;
(F6) One step to execute the program, the method is encountered when skipping;
(F7) stepping through the program, jumping out of the current method;
(F8) executes the program directly. Pauses when a breakpoint is encountered;

According to F5 is a layer of depth of debug equivalent to Peel onion samples, will enter each method inside;
Pressing F6 is a step-by-step debug in the current function, ignoring the deep-seated operation;
Pressing F7 is if you are currently inside a method, jump to the end code of the method;
Press F8 is if there is a breakpoint at the back, run to the next breakpoint, or run out of program;

Eclipse Usage Tips Compilation