debugging

问题 Is there a way in Idea to dump the content of a large - very - array of ints into the clipboard ? 'copy value' on an array return nothing. 回答1: To get the value in the clipboard using copy value, you need to define a "Java Data Type Renderer" to interpret the content of your array. Right click on your array variable Select "View as->Create..." In the "Java Data Type Renderers" window, create a new entry, set "When rendering a node, use following expression" with Arrays.toString(this) . Apply,

问题 This question already has answers here : Using Objects in For Of Loops (14 answers) Closed 3 years ago . I would like to set the options[Symbol.iterator] property in order to iterate on the simple objects I create with the for...of statement : options = { male: 'John', female: 'Gina', rel: 'Love' }; for(let p of options){ console.log(`Property ${p}`); }; But this code gives me the following error: array.html:72 Uncaught TypeError: options[Symbol.iterator] is not a function How I can set the

问题 Using Xcode 3.1 on OSX 10.5; is it possible to attach (the debugger) to a running remote process? I know that it's possible to start and debug a remote process (as explained here), but it would be great if I could find a way to attach to an already running remote process... edit to add: Thanks. I've submitted a bug report to Apple. Will update this question if/when I hear back from them. 回答1: There is no nice gui for it in XCode but you can do it this way: start a second instance of the

问题 I am fairly new to Visual Studio, coming from Java development on Eclipse. Among other things I sorely miss from Eclipse is an ability to view source of binary assemblies. In Eclipse I can attach reference to source code for a referenced jar and after that it is dead easy to navigate to the source, add breakpoints and debug those as though I have the libraries in my workspace. Up to this point I have not managed to attach source code to an assembly reference. Is it possible? How do I go about

问题 I am fairly new to Visual Studio, coming from Java development on Eclipse. Among other things I sorely miss from Eclipse is an ability to view source of binary assemblies. In Eclipse I can attach reference to source code for a referenced jar and after that it is dead easy to navigate to the source, add breakpoints and debug those as though I have the libraries in my workspace. Up to this point I have not managed to attach source code to an assembly reference. Is it possible? How do I go about

问题 When a process crashes I want the possibility to invoke gdb (or a similar debugger) against it in that crashed-but-not-cleaned-up state. Often post-morteming a core dump gives enough information but sometimes I want to explore the running state further, possibly suppressing the immediate fault and running a little further. It isn't always appropriate to run the process under gdb from the outset (e.g. where the invocation is complex or the bug is absurdly timing-sensitive) What I'm describing

问题 When debugging a java program in netbeans, I want the debugger to stop on the line that causes a NullPointerException so I can examine the variables there. I believe I have to use a condition on the breakpoint set at that line, but what is the syntax of the condition? thanks for the help 回答1: Go to debug > New Breakpoint (alternatively CTRL+SHIFT+F8). Change the breakpoint type to Exception in the top right hand drop down menu. Type java.lang.NullPointerException in the Exception class field.

问题 When debugging a java program in netbeans, I want the debugger to stop on the line that causes a NullPointerException so I can examine the variables there. I believe I have to use a condition on the breakpoint set at that line, but what is the syntax of the condition? thanks for the help 回答1: Go to debug > New Breakpoint (alternatively CTRL+SHIFT+F8). Change the breakpoint type to Exception in the top right hand drop down menu. Type java.lang.NullPointerException in the Exception class field.

问题 In my app, I use a custom NIB to load my UITableViewCells. The NIB's File's Owner is set so the class is my View Controller. I then Link the UITableViewCell to the IBOutlet I put in the header file. It was all working fine, until all of the sudden it stopped working, and gets this error: uncaught exception 'NSInvalidUnarchiveOperationException', reason: '*** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (UITableViewCellContentView)' I have traced this exception to

问题 I know I could set a breakpoint at every line where my code changes the variable, but is there an option such as right-clicking a variable (to "Add to Watches") that would stop when a variable changes value? I think C++ has this option. See this. And Eclipse? See this. Is this implemented in AS? 回答1: You can break on value changes of some variables in Android Studio 1.1.0. Android Studio calls them 'Java Field Watchpoints'. From the breakpoints windows, (Run -> "View breakpoints...") or Ctrl