javac

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? 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 more complex (and it will!), you should look into using Apache Ant for build automation. You should use build

I'm writing a makefile that compiles a .java file in a different directory, and then I want to run it, without changing directories. I want to do something along the lines of: $(SQM_JAVA_TOOL_DONE) : $(SQM_JAVA_TOOL) $(shell cd /home_dir) javac myjavafile.java java myjavafile where the Java file is /home/myjavafile.java , and the makefile isn't running from /home . How can I do this? I might be misunderstanding the question, but you can compile with javac /home/MyJavaFile.java This will create MyJavaFile.class in /home You can then run it by including /home on the classpath. e.g. java -cp

Apparently there is a limit to the size of an initialisation string in javac. Can anyone help me in identifying what the maximum limit is please? Thank you edit: We are building an initialisation string which will look something like this "{1,2,3,4,5,6,7,8......}" but with 10,000 numbers ideally. When we do this for a 1000 it works, 10,000 throws an error saying code too large for try statement. To produce this we are using a stringbuilder and looping over an array appending the values. Apparently it is a limitation in javac. We have been told that we could rebuild the array in the method we

When I compile the Spring JDBC source on OS X with JDK 1.7.0, I get this warning: warning: CachedRowSetImpl is internal proprietary API and may be removed in a future release How do I suppress the warning message during a compile? I already know and use Java's @SuppressWarning annotations. I'm looking for the specific use of this to suppress the warning I've described. My question specifically is, in this line of code: @SuppressWarnings("valuegoeshere") what should "valuegoeshere" be replaced with? EDIT: People, I know that it is best to avoid the code that leads to the warning. And usually

I have seen the compile options like discussed in Which JDK's distributions can run `javac -source 1.6 -target 1.5`? . I understand the individual options for source and target. I don't understand why source version is higher that the target version. Compiling the code for older targets makes sense. But in that case, why dont we just use -source of the oldest target we want to be able to run on Peter Tseng source: The version that your source code requires to compile. target: The oldest JRE version you want to support. Be sure to also set bootclasspath to ensure your program will work on older