Arguments of a function

I need a function with more arguments as:

private GroupLayout function(Container host, Class J1, String nameofJ1, Class J2, String nameofJ2,..................Class Jn, String nameofJn) {
//body
}

a fuction for a customizable Grouplayout for use in more applications.

I tried:

private GroupLayout function(Container host, Class ...arg, String ...arg1) {
    //body
}
but didn't work, it said "varargs parameter must be the last parameter, and with class are some problems.

for example, I'd like a function call as:
function(NamePanel, JButton, "xxx", JMenu, "yyy", JComboBox, "zzz") and to former a GroupLayout on NamePanel with JButton named "xxx", JMenu named "yyy" and so one.

Is somebody who knows a solve of this problema?

Varargs

You cannot use varargs more than once. Why? The compiler will be clueless what parameters you pass in.

See the example using String only where the compiler the first parameter is a String and the rest (0..n) is vararg (compiled into an array):

static void function(String arg, String ...arg1) { }                    // COMPILES

// this is perfectly valid, the first one is 'arg' and the rest is 'arg1'
function("1", "2", "3");  

This one with multiple varargs doesn't work, as long as the compiler doesn't know where arg1 ends and arg2 starts:

static void function(String arg, String ...arg1, String ...arg2) { }    // DOESN'T COMPILE

// are both "2" and "3" an 'arg1' and 'arg2' is empty or different?
function("1", "2", "3");  

For this reason, varargs must be always the last formal parameter.

Workaround

You seem want to pass a pair of Class and String. The best way to pass these pairs is to use a key-value based structure Map<Class, String> which also guarantees the same number of keys and values is equal.

private GroupLayout function(Container host, Map<Class<?>, String> classStringMap) {
    // method body
}

Map<Class<?>, String> map = new HashMap<>();
map.put(J1.class, "name of J1");
map.put(J2.class, "name of J2");
...
function(container, map);

Builder pattern is your friend.

This is java builder implementation.

Look at Lombok Builder annotation as well.