Java中Interface的方法和常量的默认访问修饰符

Java中Interface方法默认访问修饰符为：public abstract

Java中Interface常量的默认访问修饰符为：public static final 

验证方式：反射

public interface SomeService {

    String hi = "hello world";
  
    void save(Object o);
 
    default String des() {
        return hi;
    }
}

import org.junit.jupiter.api.Test;
 
import java.lang.reflect.Field;
import java.lang.reflect.Method;
 

public class TestSomeService {
    /**
     * Test.
     */
    @Test
    public void test() {
        Class c = SomeService.class;
        Method[] methods = c.getDeclaredMethods();
        for (Method m : methods) {
            System.out.println(m);
        }
        Field[] fields = c.getDeclaredFields();
        for (Field f : fields) {
            System.out.println(f);
        }
    }
}

验证结果:

public abstract void org.case.examples.SomeService.save(java.lang.Object)
public default java.lang.String org.case.examples.SomeService.des()
public static final java.lang.String org.case.examples.SomeService.hi