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30£®¸ø³öÏÂÃæ´úÂ룬¹ØÓڸóÌÐòÒÔÏÂÄĸö˵·¨ÊÇÕýÈ·µÄ£¿£¨ £© public class Person{
static int arr[] = new int[5];
public static void main(String a[]) {
System.out.println(arr[0]); } }
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32£®ÏÂÁÐÀඨÒåÖÐÄÄЩÊǺϷ¨µÄ³éÏóÀàµÄ¶¨Ò壿£¨ £© A¡¢abstract Animal{abstract void growl();}
B¡¢class abstract Animal{abstract void growl();} C¡¢abstract class Animal{abstract void growl();}
D¡¢abstract class Animal{abstract void growl(){System.out.println(¡°growl¡±);};}
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2.public class Interesting{ 3.//do sth 4. }
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a = Integer.parseInt(¡°12¡±);
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38. ÇëÎÊËùÓеÄÒì³£Àà½Ô¼Ì³ÐÄÄÒ»¸öÀࣿ£¨ £©¡£ A£©java.io.Exception B£©java.lang.Throwable C£©java.lang.Exception D£©java.lang.Error
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9¡¢ ÔÚJavaÓïÑÔÖУ¬ËùÓеĶÔÏó¾ùͨ¹ýnewÔËËã·û·ÖÅäÄڴ棬²¢¶ÔÄÚ´æ½øÐÐ×Ô¶¯¹ÜÀí¡£ 10¡¢Ã¿¸öJava Application³ÌÐò¿ÉÒÔ°üÀ¨Ðí¶à·½·¨£¬µ«ÊDZØÐëÓÐÇÒÖ»ÄÜÓÐÒ»¸ö_ main()·½·¨£¬Í³Ò»¸ñʽΪpublic static void main(String[] args){}£¬ËüÊdzÌÐòÖ´ÐеÄÈë¿Ú¡£
11¡¢ ÈôÒªÔÚ³ÌÐòÖж¨ÒåÒ»¸ö¹«ÓõÄintÐ͵ÄÀà³ÉÔ±±äÁ¿MAX_LENGTH£¬ÇҸñäÁ¿µÄÖµ±£³Ö³£ÊýÖµ1000£¬Ôò¶¨Òå¸Ã±äÁ¿µÄÓï¾äÊÇpublic
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public static void main(String[] args) {
for(int cnt=0;cnt<10;cnt++) { if(cnt==5) break; System.out.print(cnt); }}}
17¡¢ ÏÂÁгÌÐòµÄÔËÐнá¹ûÊÇ______4_________ import java.io.*;
public class ATest{
public static void main(String args[]) {
SubClass sb = new SubClass( ); System.out.println(sb.fun( )); }}
class SuperClass{ int a =24 , b =5 ; }
class SubClass extends SuperClass {
int fun( ) {
return a%b; } }
18¡¢ ·ÖÎöÏÂÁгÌÐò£¬ÌîÉϿհ״¦µÄÓï¾ä class point //¶¨Òå×ø±êÀà { int x,y;
test(int a,int b) {x=a;y=b;} }
class rec_extends point __________//¶¨Ò峤·½ÐÎÀà {
int length,width;
rec(int a1,int b1,int l,int w) {super(a1,b1);
length=l;width=w; }}
class test
{public static void main(String args[]) {
___test r1=new test(¡°0¡±, ¡°0¡±, ¡°10¡±, ¡°20¡±)__________________ //¶¨ÒåÃûΪr1µÄ¶ÔÏóͬʱ³õʼ»¯×ø±êΪ0£¬0£¬³¤¶ÈΪ10£¬¿í¶ÈΪ20 r1.print(); }}
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22¡¢___³éÏó______·½·¨ÊÇÒ»ÖÖ½öÓз½·¨Í·£¬Ã»ÓоßÌå·½·¨ÌåºÍ²Ù×÷ʵÏֵķ½·¨£¬¸Ã·½·¨±ØÐëÔÚ³éÏóÀàÖ®Öж¨Òå¡£ 23¡¢ ____run£¨£©______·½·¨ÓÃÓÚ¶¨ÒåÏ̵߳ÄÖ´ÐÐÌå. _____start£¨£©______·½·¨ÓÃÓÚÆô¶¯Ïß³Ì. 24¡¢String str1=¡±abc¡±;
String str2=new String(¡°abc¡±);
System.out.println(str1==str2)£» Ôò³ÌÐòÔËÐкóÊä³ö½á¹ûΪ£º_____fault________
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public static void main(String args[]) {
System.out.println(\} }
2.applet³ÌÐò
public class b extends java.applet.Applet {
public paint(java.awt.Graphics g) {
g.outstring(\} }
2£®±àдһ¸öJava Application£¬½ÓÊÕ´Ó¼üÅÌÊäÈëµÄ10¸öÕûÊý£¬²¢Êä³öÆäÖеÄ×î´ó¡¢×îСÒÔ¼°Æ½¾ùÖµ¡£ÒªÇ󣺽«¼ÆË㹦Äܶ¨ÒåÔÚÒ»¸öÀàÖУ¬ÓÉÖ÷Àà½ÓÊÕÊäÈ룬ÔÙÓÃÊý×éµÄ·½Ê½´«µÝ¸øÊµÏÖ¼ÆËãµÄÀàµÄ·½·¨£¬ÔÙÊä³ö½á¹û¡£public class Complex{ private float shibu; private float xubu; Complex() {
this(0,0); }
Complex(float shibu,float xubu){ this.shibu=shibu; this.xubu=xubu; }
public void Add(Complex p) {
Complex result=new Complex(); result.shibu=this.shibu+p.shibu; result.xubu=this.xubu+p.xubu;
System.out.print(\¼Ó·¨¹ûΪ:\}
public static void main(String[] args) { Complex fushu1=new Complex(1,2); Complex fushu2=new Complex(3,4); fushu1.Add(fushu2); }
}
4.Çó10¸öÊýÖеÄ×î´óÖµ²¢Êä³ö¡£ import java.util.Scanner;
public class Test {