Take a look at the Mockito API docs. As the linked document mentions (Point # 12) you can use any of the doThrow(),doAnswer(),doNothing(),doReturn() family of methods from Mockito framework to mock void methods. For example, Mockito.doThrow(new Exception()).when(instance).methodName(); or if you want to combine it with follow-up behavior, Mockito.doThrow(new Exception()).doNothing().when(instance).methodName(); Presuming that you are looking at … Read more
Using Java 6 or later, the classpath option supports wildcards. Note the following: Use straight quotes (“) Use *, not *.jar Windows java -cp “Test.jar;lib/*” my.package.MainClass Unix java -cp “Test.jar:lib/*” my.package.MainClass This is similar to Windows, but uses : instead of ;. If you cannot use wildcards, bash allows the following syntax (where lib is … Read more
The JAXB APIs are considered to be Java EE APIs and therefore are no longer contained on the default classpath in Java SE 9. In Java 11, they are completely removed from the JDK. Java 9 introduces the concepts of modules, and by default, the java.se aggregate module is available on the classpath (or rather, … Read more
Use java.lang.String.format(String,Object…) like this: String.format(“%05d”, yournumber); for zero-padding with a length of 5. For hexadecimal output replace the d with an x as in “%05x”. The full formatting options are documented as part of java.util.Formatter.
First run /usr/libexec/java_home -V which will output something like the following: Matching Java Virtual Machines (3): 1.8.0_05, x86_64: “Java SE 8” /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home 1.6.0_65-b14-462, x86_64: “Java SE 6” /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home 1.6.0_65-b14-462, i386: “Java SE 6” /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home Pick the version you want to be the default (1.6.0_65-b14-462 for arguments sake) then: export JAVA_HOME=`/usr/libexec/java_home -v 1.6.0_65-b14-462` or you … Read more
From the community documentation: hibernate.hbm2ddl.auto Automatically validates or exports schema DDL to the database when the SessionFactory is created. With create-drop, the database schema will be dropped when the SessionFactory is closed explicitly. e.g. validate | update | create | create-drop So the list of possible options are, validate: validate the schema, makes no changes … Read more
I have to ask a question in return: is your GenSet “checked” or “unchecked”? What does that mean? Checked: strong typing. GenSet knows explicitly what type of objects it contains (i.e. its constructor was explicitly called with a Class<E> argument, and methods will throw an exception when they are passed arguments that are not of … Read more
Use like this. List<String> stockList = new ArrayList<String>(); stockList.add(“stock1”); stockList.add(“stock2”); String[] stockArr = new String[stockList.size()]; stockArr = stockList.toArray(stockArr); for(String s : stockArr) System.out.println(s);
In your example, it is because you can’t have a List of a primitive type. In other words, List<int> is not possible. You can, however, have a List<Integer> using the Integer class that wraps the int primitive. Convert your array to a List with the Arrays.asList utility method. Integer[] numbers = new Integer[] { 1, … Read more
The instance initialiser is just syntactic sugar in this case, right? I don’t see why you need an extra anonymous class just to initialize. And it won’t work if the class being created is final. You can create an immutable map using a static initialiser too: public class Test { private static final Map<Integer, String> … Read more