//: typeinfo/Operation.javapublic interface Operation {
String description();
void command();
} ///:~package typeinfo;//: typeinfo/Robot.java
import java.util.*;
import net.mindview.util.*;public interface Robot {
String name();
String model();
List<Operation> operations();
class Test {
public static void test(Robot r) {
if(r instanceof Null)
System.out.println("[Null Robot]");
System.out.println("Robot name: " + r.name());
System.out.println("Robot model: " + r.model());
for(Operation operation : r.operations()) {
System.out.println(operation.description());
operation.command();
}
}
}
} ///:~
//: typeinfo/SnowRemovalRobot.java
import java.util.*;public class SnowRemovalRobot implements Robot {
private String name;
public SnowRemovalRobot(String name) {this.name = name;}
public String name() { return name; }
public String model() { return "SnowBot Series 11"; }
public List<Operation> operations() {
return Arrays.asList(
new Operation() {
public String description() {
return name + " can shovel snow";
}
public void command() {
System.out.println(name + " shoveling snow");
}
},
new Operation() {
public String description() {
return name + " can chip ice";
}
public void command() {
System.out.println(name + " chipping ice");
}
},
new Operation() {
public String description() {
return name + " can clear the roof";
}
public void command() {
System.out.println(name + " clearing roof");
}
}
);
}
public static void main(String[] args) {
Robot.Test.test(new SnowRemovalRobot("Slusher"));
}
} /* Output:
Robot name: Slusher
Robot model: SnowBot Series 11
Slusher can shovel snow
Slusher shoveling snow
Slusher can chip ice
Slusher chipping ice
Slusher can clear the roof
Slusher clearing roof
*///:~请问 new Operation() {
public String description() {
return name + " can chip ice";
}
public void command() {
System.out.println(name + " chipping ice");
}
},
是定义的内部类吗。与开头的
public interface Operation {
String description();
void command();
} ///:~
有什么关系
String description();
void command();
} ///:~package typeinfo;//: typeinfo/Robot.java
import java.util.*;
import net.mindview.util.*;public interface Robot {
String name();
String model();
List<Operation> operations();
class Test {
public static void test(Robot r) {
if(r instanceof Null)
System.out.println("[Null Robot]");
System.out.println("Robot name: " + r.name());
System.out.println("Robot model: " + r.model());
for(Operation operation : r.operations()) {
System.out.println(operation.description());
operation.command();
}
}
}
} ///:~
//: typeinfo/SnowRemovalRobot.java
import java.util.*;public class SnowRemovalRobot implements Robot {
private String name;
public SnowRemovalRobot(String name) {this.name = name;}
public String name() { return name; }
public String model() { return "SnowBot Series 11"; }
public List<Operation> operations() {
return Arrays.asList(
new Operation() {
public String description() {
return name + " can shovel snow";
}
public void command() {
System.out.println(name + " shoveling snow");
}
},
new Operation() {
public String description() {
return name + " can chip ice";
}
public void command() {
System.out.println(name + " chipping ice");
}
},
new Operation() {
public String description() {
return name + " can clear the roof";
}
public void command() {
System.out.println(name + " clearing roof");
}
}
);
}
public static void main(String[] args) {
Robot.Test.test(new SnowRemovalRobot("Slusher"));
}
} /* Output:
Robot name: Slusher
Robot model: SnowBot Series 11
Slusher can shovel snow
Slusher shoveling snow
Slusher can chip ice
Slusher chipping ice
Slusher can clear the roof
Slusher clearing roof
*///:~请问 new Operation() {
public String description() {
return name + " can chip ice";
}
public void command() {
System.out.println(name + " chipping ice");
}
},
是定义的内部类吗。与开头的
public interface Operation {
String description();
void command();
} ///:~
有什么关系
解决方案 »
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