Java Coding Problems

154. Checking the variable number of arguments

In Java, a method can receive a variable number of arguments if its signature contains an argument of the varargs type.

For example, the plantation() method takes a variable number of arguments, for example, Seed... seeds:

public class Melon {  ...  public void plantation(String type, Seed...seeds) {}  ...}

Now, the Java Reflection API can tell whether this method supports a variable number of arguments via the Method.isVarArgs() method, as follows:

Class<Melon> clazz = Melon.class;Method[] methods = clazz.getDeclaredMethods();for (Method method: methods) {  System.out.println("Method name: " + method.getName()     + " varargs? " + method.isVarArgs());}

You will receive output similar to the following: ...