Java abstract 抽象类
package com.ssm.cts.test;
public abstract class Bike {
private String name;
public abstract void start();
}
package com.ssm.cts.test;
public class MotoBike extends Bike {
@Override
public void start() {
System.out.println(“启动”);
}
package com.ssm.cts.test;
public abstract class Bike {
private String name;
public abstract void start();
}
package com.ssm.cts.test;
public class MotoBike extends Bike {
@Override
public void start() {
System.out.println(“启动”);
}
使用 implements 关键字可以变相的使java具有多继承的特性,使用范围为类继承接口的情况,可以同时继承多个接口(接口跟接口之间采用逗号分隔)。
package com.ssm.cts.test;
public interface ICar {
public void start();
public void stop();
}
package com.ssm.cts.test;
public interface ICarFly {
public void
package com.ssm.cts.test;
public class Car {
public String code;
private String name;
public Car(String _name) {
super();
this.name = _name;
}
public void start() {
System.out.println(name + “启动”);
}
public void stop() {
Syste
package com.ssm.cts.test;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.
package com.ssm.cts.test;
public class ClassTest {
// 测试
public static void main(String[] args) {
StringBuffer sb = new StringBuffer(“网址:”);
sb.append(“idodo”);
sb.append(“.xin”);
System.out.println(sb);
}
}
package com.ssm.cts.test;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Stack;
import java.util.Vector;
public class ClassTest {