2.4.3.1 语法结构

public <泛型表示符号> void 方法名(泛型表示符号... args){
}

举例：

public class Student<T> {
    public <T> void array(T...arr){ //可变参数实际是数组
        for (T s: arr) {
            System.out.println(s);
        }
    }
}

public class Test_2 {
    public static void main(String[] args) {
        Student student = new Student();
        String[] arr = new String[]{"a","b","c"};
        Integer[] arr1 = new Integer[]{1,3,5};
        student.array(arr);
        student.array(arr1);
    }
}