ch02_varargs

2. Varargs

• optional array input of method
• it is possible:
  • not use it or put null value - see #1 in example
  • put one or more value ceparated with comma - see #2 in example
  • use array - see #3 in example
• method can have exactly one varargs input argument and it must be last method argument

private void methodWithVarargs(String... varargs) {
}

methodWithVarargs();        // #1
methodWithVarargs(null);    // #1

methodWithVarargs("single value");          // #2
methodWithVarargs("value 1", "value 2");    // #2

methodWithVarargs(new String[]{});                      // #3
methodWithVarargs(new String[]{"value"});               // #3
methodWithVarargs("value 1", new String[]{"value 2"});  // #3