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{

public static void main(String args[]){ Check m = new Check(4,8); Check n = new Check,,;

Check p = new Check(\ } }

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´´½¨Ò»¸öÃû³ÆÎªStaticDemoµÄÀ࣬²¢ÉùÃ÷Ò»¸ö¾²Ì¬±äÁ¿ºÍÒ»¸öÆÕͨ±äÁ¿¡£¶Ô±äÁ¿·Ö±ð¸³Óè10ºÍ5µÄ³õʼֵ¡£ÔÚmain()·½·¨ÖÐÊä³ö±äÁ¿Öµ¡£ class StaticDemo {

private static int a=10; private int b=5;

public String getInfo(){ return \ } }

public class b01 {

public static void main(String args[]){ StaticDemo m = new StaticDemo(); } }

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String str;

public MainClass(String str){ = str; } }

class MainSubClass extends MainClass{ public MainSubClass(String str){ super(str); \ }

}

import ;

class SamePackage {

MainSubClass b = new MainSubClass(\ }

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´´½¨Ò»¸öÃû³ÆÎªMainPackageµÄ°ü£¬Ê¹Ëü°üº¬MainClassºÍMainSubClassÀà¡£MainClassÀàÓ¦µ±°üº¬±äÁ¿ÉùÃ÷£¬ÆäÖµ´Ó¹¹Ôì·½·¨ÖÐÊä³ö¡£MainSubClassÀà´ÓMainClassÅÉÉú¶øÀ´¡£ÊÔÖ´ÐÐÏÂÁвÙ×÷£º´´½¨Ò»¸öÃû³ÆÎªSamePackageµÄÀ࣬ʹËüµ¼ÈëÉÏÊö°ü£¬²¢´´½¨Ò»¸öMainSubClassÀàµÄ¶ÔÏó¡£

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´´½¨Ò»¸ö¸¸ÀàºÍ×ÓÀ࣬¸¸ÀàÓÐÒ»¸öÊý¾Ý³ÉÔ±£¬×ÓÀà¼Ì³Ð¸¸ÀàµÄ¸ÃÊý¾Ý³ÉÔ±£¬Í¨¹ý¹¹Ô캯Êý³õʼ»¯²¢ÏÔʾ¸ÃÊý¾Ý³ÉÔ±µÄÖµ¡£ class Father {

int a;

public Father(int a){ = a; } }

class Son extends Father {

public Son(int a){ super(a); \ } }

public class b01 {

public static void main(String args[]){ Son e = new Son(4); } }

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½¨Á¢Ò»¸öÆû³µAutoÀ࣬°üÀ¨ÂÖÌ¥¸öÊý£¬Æû³µÑÕÉ«£¬³µÉíÖØÁ¿¡¢ËٶȵȳÉÔ±±äÁ¿¡£²¢Í¨¹ý²»Í¬µÄ¹¹Ôì·½·¨´´½¨ÊµÀý¡£ÖÁÉÙÒªÇó£º Æû³µÄܹ»¼ÓËÙ£¬¼õËÙ£¬Í£³µ¡£ ÔÙ¶¨ÒåÒ»¸öСÆû³µÀàCar£¬¼Ì³ÐAuto£¬²¢Ìí¼Ó¿Õµ÷¡¢CDµÈ³ÉÔ±±äÁ¿£¬¸²¸Ç¼ÓËÙ£¬¼õËٵķ½·¨¡¢class Auto {

int tires;

String color; int load; int speed;

public Auto(int tires,String color,int load,int speed){ = tires; = color; = load; = speed; }

void upSpeed(){ \¼ÓËÙÁË\ }

void downSpeed(){ \¼õËÙÁË\ }

void stop(){ \Í£³µÁË\ }

void getInfo(){

\ÂÖÌ¥Êý£º\ÑÕÉ«£º\³µÉíÖØÁ¿£º\ËÙ¶È\ } }

class Car extends Auto {

boolean Aircondition; boolean CD;

public Car(int tires,String color,int load,int speed,boolean Aircondition,boolean CD){

super(tires,color,load,speed); = Aircondition; = CD; }

void upSpeed(){ \¿ªÊ¼¼ÓËÙÁË\ }

void downSpeed(){ \¿ªÊ¼¼õËÙÁË\ }

void getInfo(){

\ÂÖÌ¥Êý£º\ÑÕÉ«£º\³µÉíÖØÁ¿£º\ËÙ¶È\Óпյ÷£º\ÓÐCD:\ }

}

public class b01 {

public static void main(String args[]){

Car m = new Car(4,\°×É«\ (); (); } }

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Éè¼ÆÒ»¸öÄÜϸ·ÖΪ¾ØÐΡ¢Èý½ÇÐΡ¢Ô²ÐκÍÍÖÔ²Ðεġ°Í¼ÐΡ±ÀࡣʹÓü̳н«ÕâЩͼÐηÖÀ࣬ÕÒ³öÄÜ×÷Ϊ»ùÀಿ·ÖµÄ¹²Í¬ÌØÕ÷(ÈçУ׼µã)ºÍ·½·¨(Èç»­·¨¡¢³õʼ»¯)£¬²¢¿´¿´ÕâЩͼÐÎÊÇ·ñÄܽøÒ»²½»®·ÖΪ×ÓÀà¡£

±¾ÌâÖ»¿¼ÂÇʵÏÖ˼Ï룬²»¿¼ÂǾßÌåʵÏÖµÄϸ½Ú£¬ÊµÏÖ·½Ê½¿É×ÔÓÉ·¢»Ó¡£ import class Graph {

public Point center;

public Graph(Point center) {

= center; }

public abstract void getInfo(); }

class Rectangle extends Graph {

private int length; private int width;

public Rectangle(Point center,int length,int width){ super(center); = length; = width; }

public void getInfo(){

\¾ØÐΣº\\n\У׼µã£º\

+\¾ØÐγ¤¶È£º\¾ØÐοí¶È£º\ } }

class Circle extends Graph {

private int radius;

public Circle(Point center, int radius){ super(center); = radius;

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