分类： 编程语言

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 {

package com.ssm.cts.test;

import java.util.Enumeration;

import java.util.Hashtable;

import java.util.Stack;

import java.util.Vector;

public class ClassTest {

// 测试

public static void main(String[] args) {

Hashtable<String, String&g

package com.ssm.cts.test;

import java.util.Enumeration;

import java.util.Stack;

import java.util.Vector;

public class ClassTest {

// 测试

public static void main(String[] args) {

Stack<Integer> st = new Stack<Integer>();

st.

package com.ssm.cts.test;

import java.util.Enumeration;

import java.util.Vector;

public class ClassTest {

// 测试

public static void main(String[] args) {

Enumeration<String> elem;

Vector<String> site = new Vector<String&gt

package com.ssm.cts.test;

public class ClassTest {

// 测试

public static void main(String[] args) {

// 创建不同类型数组： Integer, Double 和 Character

Integer[] intArr = { 1, 2, 3, 4, 5 };

Double[] doubleArr = { 1.1, 2.2, 3.3, 4.4 };

Character[] ch

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 {