java就近原则小代码

package day01;

import java.util.ArrayList; import java.util.Collection;

public class Test {

 public static void main(String[] args) {         test(null);

 }  public static void test(int i){     System.out.println("int");  }  public static void test(ArrayList arrayList){     System.out.println("arrayList");  }  public static void test(Object o){     System.out.println("object");  }  public static void test(Collection c){     System.out.println("collection");  }

}