Question

java为什么不能new接口的实现类

java为什么不能new接口的实现类？要是new的话，执行就报下面的错误：Exception in thread "main" java.lang.Error: Unresolved compilation problem:
Cannot instantiate the type People

at common.test.Demp.main(Demp.java:7)请大神指教。
package common.test;
public interface People {
public void say();
}
package common.test;
public class Chines implements People {
public void say() {
System.out.println("hello world");
}
}
package common.test;
public class Demp {
public static void main(String[] args) {
People people=new Chines();
people.say();
People people222a =new People();
people222a.say();
}

}

Answer 1

People people222a =new People(); 这里错了

追问

已贴

追答

People people222a =new People(); 接口怎么new 接口

Answer 2

无语 只贴错误没代码怎么帮你分析

追问

已贴

追答

你的错误在
People people222a =new People();

借口是不能new的
只能new接口的实现