Reflection 映射
public class TestReflect {
???? public int sum(int m,int n){
???????? return m+n;
???? }
?
???? public String say(String name){
??? ???? return name+": haha!";
??? ?}
?
??? ?public static void main(String[] args) throws Exception {
??????? ?Class cla = TestReflect.class;
????? ???Method sumMethod = cla.getMethod("sum", new Class[]{int.class,int.class});
????? ???int sum = (Integer) sumMethod.invoke(cla.newInstance(), new Object[]{1,2});
??????? ?Method sayMethod = cla.getMethod("say", new Class[]{String.class});
??????? ?String word = (String) sayMethod.invoke(cla.newInstance(), new Object[]{"I"});
???????? System.out.println(sum);
??????? ?System.out.println(word);
?? ?}
}
?
