阅读以下说明和Java代码,将应填入(n)处的字句写在对应栏内。[说明]编写一个字符界面的Java Application 程序,接受用户输入的10个整数,并输出这10个整数的最大值和最小值。[Java 代码]import java. io.* ;public class abc{public static void main ((1)){int i, n=10, max=0, min=0, temp=0;try {BufferedReader br = new BufferedReader (new InputStreamReader ( System.in ) );max = min =Integer. parselnt ( br. readLine ( ) );}. (2) ( IOExccption e ) {} ;for ( i=2 ; i<=n ; i++ ) {try {BufferedReader br = new (3) (new InputStreamReader ( System. in ) );temp =(4) ( br. readLine ( ));if (temp>max ) max=temp;if (temp<min) (5)} catch (IOException e ) {};}System.out.println ( "max="+max+"\nmin="+min );}}

阅读以下说明和Java代码,将应填入(n)处的字句写在对应栏内。

[说明]

编写一个字符界面的Java Application 程序,接受用户输入的10个整数,并输出这10个整数的最大值和最小值。

[Java 代码]

import java. io.* ;

public class abc

{

public static void main ((1))

{int i, n=10, max=0, min=0, temp=0;

try {

BufferedReader br = new BufferedReader (

new InputStreamReader ( System.in ) );

max = min =Integer. parselnt ( br. readLine ( ) );

}. (2) ( IOExccption e ) {} ;

for ( i=2 ; i<=n ; i++ ) {

try {

BufferedReader br = new (3) (

new InputStreamReader ( System. in ) );

temp =(4) ( br. readLine ( ));

if (temp>max ) max=temp;

if (temp<min) (5)

} catch (IOException e ) {};

}

System.out.println ( "max="+max+"\nmin="+min );

}

}


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阅读以下说明和Java代码,将解答写入对应栏内。【说明】下面的程序是从命令行输入3个数传递到public static void main(String args[])方法中 (如java IsTriangle 3 4 5),并判断这3个数能否构成三角形的3条边,并显示相应的结果。请在程序的每条横线处填入适当的语句,使程序的功能完整。注意:请勿改动main()主方法和其他已有的语句内容,仅在横线处填入适当的语句。public class IsTriangle{public static void main( String args[ ]){int a[] =new (1) [args.(2)];for(int i=0;i<3;(3)){a[i]=(4)}if((5))System. out. println(a[0] +","+a[1] +","+a[2]"能构成三角形的3条边");elseSystem. out. println(a[0] +","+a[1] +","+a[2]"不能构成三角形的3条边);}}

阅读以下说明和JAVA 2代码,将应填入(n)处的字句写在对应栏内。[说明]以下程序为类类型的变量应用实例,通过异常处理检验了类CCircle的变量的合法性,即参数半径应为非负值。仔细阅读代码和相关注释,将程序补充完整。[JAVA代码]//定义自己的异常类class CCircleException extends Exception{}// 定义类 CCircleclass CCircle{private double radius;public void setRadius ( double r ) (1){if ( r<0 ) {(2)}else(3)}Public void show ( ) {System. out. println ( "area="+3.14*radius*radius );}}public class ciusample{public static void main ( String args[] ){CCircle cir=new CCircle( );(4) {cir. setRadius ( -2.0 )}(5){System. out. println ( e+" throwed" ) ;}cir. show( ) ;}}

阅读以下说明和Java代码,填补代码中的空缺,将解答填入答题纸的对应栏内。 【说明】 以下Java代码实现两类交通工具(Flight和Train)的简单订票处理, 类Vehicle、Flight、Train之间的关系如图5-1所示。图5-1【Java代码】 import java.util.ArrayList; import java.util.List; abstract class Vehicle { void book(int n) { //订 n张票 if (getTicket0()=n) { decrease Ticket(n); } else { System.out.println(余票不足!!); } } abstract int getTicket(); abstract void decreaseTicket(int n); }; class Flight (1) { Private (2) tickets=216; //Flight的票数 Int getTicket(){ Return tickets; } void decreaseTicket(int n){ tickets=tickets -n; } } class Train (3) { Private (4) tickets=2016; //Train的票数 int getTicket() { return tickets; } void decreaseticket(int n) { tickets = tickets - n; } } public class Test { public static void main(String[] args) { System.out.println(欢迎订票 ! ); ArrayListVehicle v = new ArrayListVehicle(); v.add(new Flight()); v.add(new Train()); v.add(new Flight()); v.add(new Train()); v.add(new Train()); for (int i=0;iv.size(); i++){ (5) (i+1); //订i+1张票 System.out.println(剩余票数: +v.get(i).getTicket()); } } } 运行该程序时输出如下: 欢迎订票! 剩余票数:215 剩余票数:2014 剩余票数: (6) 剩余票数: (7) 剩余票数: (8)

阅读以下说明和 Java 代码,填补代码中的空缺,将解答填入答题纸的对应栏内。 【说明】 设计 RGB 方式表示颜色的调色板,进行绘图。其类图如图 6-1 所示。该程序的 Java代码附后。图6-1 类图【Java 代码】 //颜色类 class MyColor { private int red ,green, blue; public MyColor( ) { red = o; green = 0; blue = 0; } public MyColor(int red ,int green ,int blue) { this.red = red; this.green = green; this.blue = blue; } //其他方法略 public String toString( ) { return Red: + red + \tGreen: + green + \tBlue + blue; } } //调色板类 class Palette { public int number; / /颜色数 private (1)palette; //颜色表 public Palette( ) { number = 256; palette = new MyColor[number); } public Palette(MyColor[] palette ,int number) { (2)= number; (3)= palette; } //其他方法略 public String toString( ) { String str = ; for (int i = 0; i number; i++) { str +=i+ : + palette[i] + \n; } return str; } //绘图类 class Drawing { public (4) int COLORNUMBER = 16; public static void main(String[] args) { Palette palette; int red ,green ,blue; MyColor[] color = new MyColor[COLORNUMBER]; for (int i = 0; i COLORNUMBER; i++) { red = (int) (Math.random( ) * 256); green = (int) (Math.random( ) * 256); blue = (int) (Math.random( ) * 256); color [i] = (5) (red ,green ,blue); } palette = new Palette(color ,COLORNUMBER); System.out.println(palette); } }

下列程序使用系统标准输入System.in从键盘获得输入字符串,请选择正确的一项填入下列程序的横线处。 import java.io.*; public class ex26 { public static void main(String args[]) { byte buffer[] = new byte[128]; int n; try { n = for(int i = 0; i < n; i++) System.out .print ( (char)buffer [i] ); catch (IOException e) { System.out.print (e); } } }A.System.in.read(buffer)B.system.in.read(buffer)C.System.in.read0D.System.in(buffer)

试题七(共 15 分)阅读以下说明和 Java 代码,将应填入 (n) 处的字句写在答题纸的对应栏内。[说明]java.util 库中提供了 Vector 模板类,可作为动态数组使用,并可容纳任意数据类型。该类的部分方法说明如下表所示:[Java 代码]import (1) ;public class JavaMain {static private final int (2) = 6;public static void main(String[] args){VectorInteger theVector = new Vector (3) ();// 初始化 theVector,将 theVector的元素设置为 0 至 5for (int cEachItem = 0; cEachItem ARRAY_SIZE; cEachItem++)theVector.add( (4) );showVector(theVector); // 依次输出 theVector中的元素theVector.removeElementAt(3);showVector(theVector);}public static void showVector(VectorInteger theVector){if (theVector.isEmpty()) {System.out.println("theVector is empty.");return;}for (int loop = 0; loop theVector.size(); loop++) {System.out.print(theVector.get(loop));System.out.print(", ");}System.out.println();}}该程序运行后的输出结果为:0, 1, 2, 3, 4, 5(5)

阅读以下说明和Java代码,填补代码中的空缺,将解答填入答题纸的对应栏内。【说明】以下Java代码实现两类交通工具(Flight和Train)的简单订票处理,类Vehicle、Flight、Train之间的关系如图5-1所示。【Java代码】import java.util.ArrayList;import java.util.List; abstract class Vehicle {void book(int n) { //订 n张票if (getTicket0() >=n ) {decrease Ticket(n);} else {System.out.println(“余票不足!!“);}} abstract int getTicket();abstract void decreaseTicket(int n);}; class Flight(1){Private(2)tickets=216; //Flight的票数Int getTicket(){Return tickets;} void decreaseTicket(int n){tickets=tickets - n;}} class Train(3){Private(4)tickets=2016; //Train的票数int getTicket() {return tickets;} void decreaseticket(int n) {tickets = tickets - n; }} public class Test {public static void main(String[] args) {System.out.println(“欢迎订票!");ArrayListVehicle v = new ArrayListVehicle();v.add(new Flight());v.add(new Train());v.add(new Flight());v.add(new Train());v.add(new Train());for(int i=0;iv.size(); i++){(5)(i+1); //订i+1张票System.out.println(“剩余票数:”+v.get(i).getTicket());}}}运行该程序时输出如下:欢迎订票!剩余票数:215剩余票数:2014剩余票数:(6)剩余票数:(7)剩余票数:(8)