}catch(Exception e){

System.err.println(e.getMessage()); // 2 }

finally{

System.out.println(\ } }

public static void method1() throws Exception { method2(); //4 }

public static void method2() throws Exception { method3(); //5 }

public static void method3() throws Exception{

throw new Exception( \ } }

34¡¢ÔĶÁÏÂÃæµÄ³ÌÐò£º

public class Timer extends Thread{ int time=0;

public Timer(int time) { this.time=time; }

public void run(){ try{

for(int i=0;i

System.out.print (i+¡°-¡±); } }

catch(Exception e) {

System.out.println(e.toString()); } }

public static void main(String args[]){ Timer timer=new Timer(10); timer.start(); } }

ÒÔÉϳÌÐò¾­±àÒëºóÔËÐнá¹ûÊÇ£º

Îå¡¢³ÌÐòÌî¿ÕÌâ

1¡¢ÔĶÁÏÂÃæµÄ³ÌÐò£¬Ð´³ö´ø»®ÏßÓï¾äµÄ×¢ÊÍ£¬²¢Ð´³öÔËÐнá¹û¡£

µÚ 33 Ò³ ¹² 48 Ò³

import java.awt.*; import javax.swing.*;

public class Test {// ¼Ì³ÐJFrame private int screenOffset = 80; public Test(){

super( \ ; // ÉèÖÃJFrameµÄ´óСΪ300*300 show(); // }

public void paint( Graphics g ){

for ( int i = 1; i <= 8; i++ ) {

int origin = screenOffset + 80 - i * 10; g.drawOval(origin, origin, i * 20, i * 20); } }

public static void main( String args[] ){ Test application = new Test();

application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE ); } }

2¡¢ÔĶÁÏÂÃæµÄ³ÌÐò,д³ö´ø»®ÏßÓï¾ä»ò×¢ÊÍ£¬²¢Ð´³ö¸Ã³ÌÐòµÄ×÷Ó㺠import java.io.*; public class Test {

public static void main(String args[]) { scanFiles(\ }

public static void scanFiles(String path) { if (path == null) return;

File f = new File(path); // if (!f.exists()) return;

if (f.isFile()) // System.out.println(f.getAbsolutePath()); else {

File dir[] = f.listFiles(); for (int i = 0; i < dir.length; i++)

scanFiles(dir[i].getAbsolutePath());// } } }

3¡¢×ÐϸÔĶÁÏÂÃæµÄ³ÌÐò´úÂ룬Ç뽫»®ÏßÉÏ¢Ù¡«¢ÝµÄÓï¾ä²¹³äÍêÕû¡£

µÚ 34 Ò³ ¹² 48 Ò³

abstract class Person{

private String name;

public Person(String n){ name = n; }

public ____¢Ù________ String getDescription(); public ____¢Ú_________ (){ return name; } }

class Student ____¢Û _________ Person{

private String major;

public Student(String n, String m){ super(n); major = m; }

public String ____¢Ü_________(){ return \ѧÉúרҵÊÇ:\ } }

public class TestPerson{

public static void main(____¢Ý________){

Person p = new Student(\ÍõÌðÌð\¼ÆËã»ú¿Æѧ\

System.out.println(p.getName() + \ } }

4¡¢ÔĶÁÏÂÃæµÄ³ÌÐòMyAdd.java£¬Ìîд»®Ïß²¿·ÖµÄÓï¾ä»ò×¢ÊÍ£¬²¢Ð´³ö³ÌÐòÖ´Ðнá¹û¡£ public class MyAdd { //¼Ì³ÐÏß³ÌÀà static int total = 10; int n;

public MyAdd(int n){

this.n=n; }

public void run() { try{

sleep(n); //º¬ÒåÊÇ£º total=total+n;

µÚ 35 Ò³ ¹² 48 Ò³

System.out.println(total); }

catch(Exception e){

System.out.println(¡°EXCEPTION!¡±); }

}

public static void main(String[] args) { MyAdd t1 = new MyAdd(3000);

; //Æô¶¯Ïß³Ìt1 } }

5¡¢ÔĶÁÏÂÃæµÄ³ÌÐòTest.java£¬ÏÈÌîд¿Õ¸ñµÄÄÚÈÝ£¬È»ºóд³öÔËÐнá¹û:

21) import java.io.*; 22) public class Test{

23) public static void main(String argv[]){

24) ; //´´½¨Test¶ÔÏ󣬶ÔÏóÃûΪt 25) System.out.println(t.fliton()); 26) }

27) public int fliton(){ 28) try{

//µÚ9Ðеĺ¬ÒåÊÇ£º 29) FileInputStream din = new FileInputStream(\30) din.read();

31) }catch(IOException ioe){ //µÚ11Ðеĺ¬ÒåÊÇ£º 32) System.out.println(\33) return -1; 34) }

35) finally{

36) System.out.println(\37) }

38) return 0; 39) } 40) }

Èç¹ûÎļþtest.txtÓëTest.javaÔÚͬһ¸öĿ¼Ï£¬test.txtÖнöÓÐÒ»ÐÐ×Ö·û´®¡°hello world!¡±£¬ÔËÐнá¹ûÊÇʲô£¿

6¡¢ÔĶÁÏÂÃæµÄ³ÌÐò´úÂ룬¸ù¾Ý×¢ÊÍÒªÇ󲹳䡢Íê³É´úÂ루»®ÏßÊÇÐèÒª²¹³äµÄµØ·½£©£¬×îºó¼òҪ˵Ã÷¸Ã³ÌÐòµÄ¹¦ÄÜ¡£

1. ___________________{ //ÉùÃ÷Ò»¸ö½Ó¿Ú£¬½Ó¿ÚÃûΪArea 2. public double CalsulateArea(); 3. }

4. class MyCircle implements Area{ 5. double r;

µÚ 36 Ò³ ¹² 48 Ò³