javac

问题 Hi i have been using an IDE but now I need to run and compile from the command line. The problem is that I have multiple packages and I have tried to find the answer but nothing has worked. So I have src/ Support/ (.java files) Me/ (.java files) Wrapers/ (.java files) Do you know how to compile everything with javac? 回答1: This should do it (may require additional classpath elements via the -cp command line switch): javac Support/*.java Me/*.java Wrapers/*.java But if your build process gets

问题 I hope somebody can give me an advice... Problem In source directory of my project some packages contain resources which are not ".java"-files. Now I need to put there compiled ".class"-files. The problem is that ANT filters them out when I am building the final JAR. ".dll" and ".png" files are not filtered out. How can I achieve that everything is copied to the target directory? I use following Ant task: <javac srcdir="${src}" destdir="${temp}" target="1.5" encoding="8859_1" debug="${compile

问题 I hope somebody can give me an advice... Problem In source directory of my project some packages contain resources which are not ".java"-files. Now I need to put there compiled ".class"-files. The problem is that ANT filters them out when I am building the final JAR. ".dll" and ".png" files are not filtered out. How can I achieve that everything is copied to the target directory? I use following Ant task: <javac srcdir="${src}" destdir="${temp}" target="1.5" encoding="8859_1" debug="${compile

问题 I'm trying to connect to an application written in VB using Jintegra to access it from JAVA. Since I don't know how to work on JINTEGRA_NATIVE_MODE from Eclipse, I'm forced to use cmd and Javac... Anyways, I get this irritating error everytime I try to run the link (No actual code, just the link to the other application. I read all other related questions here and couldnt get anything that might help.. I'm totally novice about this.. Please If you can help, gimme a hand here.. Here is the

问题 When we use javac option: -source and -target how does the compiler "knows" the code to produce ? I mean how does any compiler knows the specification of any previous java release or I have to do some setting in order to provide it with some information about them ? 回答1: The javac program knows how to handle these arguments without you providing any extra information. Do note that there is a bit of a trap here, however: these options relate to the source syntax and the class file form and

问题 When we use javac option: -source and -target how does the compiler "knows" the code to produce ? I mean how does any compiler knows the specification of any previous java release or I have to do some setting in order to provide it with some information about them ? 回答1: The javac program knows how to handle these arguments without you providing any extra information. Do note that there is a bit of a trap here, however: these options relate to the source syntax and the class file form and

问题 I am trying to compile a project containing some Java 8 source files using lambdas using SBT 0.13.7. Now, I set -java-home /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Home in /usr/local/etc/sbtopts And apparently SBT does take this into consideration, because if I supply the wrong path it complains about no java being present. However, when I try compiling, I get the following [error] /Users/edafinov/GitRepos/Java8SBTTest/src/main/java/Main.java:10: error: illegal start of expression

问题 here is my directory structure. /user/a /user/b /user/b inside folder a,b,c there is a file person.java (it is the Same file, just a one line modification. now, on my shell, im on my /user/ directory and i try to do javac */person.java the shell returns the following error, person.java:14: duplicate class: person Is there anything to resolve this? 回答1: I think the problem here might be, that javac tries to compile everything in one go, which naturally results in duplicated class definitions.

问题 I am trying to setup xmlbeans-maven-plugin 2.3.3 in my Eclipse and while everything seems to go OK, It fails with an java.io.IOException due to inability to find the file C:\Users\Daniel\Workspace\MyProject\javac . This is strange because javac is on the system's %PATH% so why would it try to find it in %PROJECT_LOC%? I found this problem description which sounds very similar to mine, but I placed the JDK path in front of all other paths and that didn't help. Any idea how to tell the xmlbeans

问题 This question already has answers here : How do I run a Java program from the command line on Windows? (12 answers) Closed 3 years ago . This is a beginner question. I am trying to run a java program from cmd with arguments. This is my class: public class Test{ public static void main(String[] args){ System.out.println("This is a test"); System.out.println(args.length); } } I can run it without arguments successfully. How can I put for example 5 and 6 as arguments in my program? All the other