Java Variable-length arguments

We can pass a number of variable using variable length arguments. It is called varargs in Java. The syntax is data_type...  argument_name.

Examples:

public class LearnMethod {

    public static void main(String[] args) {

        loopNumbers(345,3,98,698,63,2,63,34);

    }

    public static void loopNumbers(int... numbers){
        for (int i = 0; i < numbers.length; i++){
            System.out.println(numbers[i]);
        }
    }

}

In the example we pass many values but in the method definition we catch all the values by using varargs. and loop on varargs to get all values.

Output:

345
3
98
698
63
2
63
34

There are some rules for using varargs

1. A method can have only one varargs

2. And the varargs must be the last agrument or parameter in the method

you should follow the rules otherwise you will get errors.