JAVA编程题 急求啊

import javautilScanner;

public class Test{

public static void main(String[] args){

Scanner s = new Scanner(Systemin);

Systemoutprintln("请输入10个学生成绩（用空格分隔）：");

int[] sco = getScores(s);

for(int i=0;i<scolength-1;i++){

for(int j=0;j<scolength-1-i;j++){

if(sco[j]<sco[j+1]){

int t = sco[j];

sco[j]=sco[j+1];

sco[j+1]=t;

}

}

}

for(int i=0;i<scolength;i++){

Systemoutprint(sco[i]+" ");

}

}

public static int[] getScores(Scanner s){

String str = snextLine();

String[] score = strsplit(" ");

if(scorelength<10){

Systemoutprintln("请输入至少10个成绩:");

return getScores(s);

}

int[] sco=new int[10];

try{

for(int i=0;i<scorelength;i++){

sco[i]=IntegerparseInt(score[i]);

}

}catch(Exception e){

Systemoutprintln("请输入成绩:");

return getScores(s);

}

return sco;

}

}

第一题：<pre t="code" l="java">

public class People

{

private String name;

public String speak(){

return "";

}

public String getName()

{

return name;

}

public void setName(String name)

{

thisname = name;

}

}

public class American extends People

{

private String name;

@Override

public String speak()

{

return "i’m speak English";

}

public String getName()

{

return name;

}

public void setName(String name)

{

thisname = name;

}

}

public class Chinese extends People

{

private String name;

@Override

public String speak()

{

return "我说中国话";

}

public String getName()

{

return name;

}

public void setName(String name)

{

thisname = name;

}

}

import javautilHashMap;

import javautilMap;

public class Demo01

{

public static Map<, > recruit(People[] people)

{

Map<String, String> resultMap = new HashMap<String, String>();

for (People p : people)

{

if ("我说中国话"equals(pspeak()))

resultMapput(pgetName(), "中国人");

else

resultMapput(pgetName(), "美国人");

}

return resultMap;

}

public static void main(String[] args)

{

Chinese chinese01 = new Chinese();

chinese01setName("小明");

Chinese chinese02 = new Chinese();

chinese02setName("小红");

American american = new American();

americansetName("Tom");

People[] peoples = new People[] { chinese01, chinese02, american };

Map<String, String> resultMap = new HashMap<String, String>(3);

resultMap = (Map<String, String>) recruit(peoples);

for (MapEntry<String, String> entry : resultMapentrySet())

{

String key = entrygetKey();

String value = entrygetValue();

Systemoutprintln(key + ":" + value);

}

}

}

/

运行结果

Tom:美国人

小明:中国人

小红:中国人

/ 第二题：<pre t="code" l="java">public class Engineer

{

private String name;

public String writerCode()

{

return "";

}

public String getName()

{

return name;

}

public void setName(String name)

{

thisname = name;

}

}

public class JavaEngineer extends Engineer

{

private String name;

@Override

public String writerCode()

{

return "在写Java代码";

}

public String getName()

{

return name;

}

public void setName(String name)

{

thisname = name;

}

}

public class iOSEngineer extends Engineer

{

private String name;

@Override

public String writerCode()

{

return "在写iOS代码";

}

public String getName()

{

return name;

}

public void setName(String name)

{

thisname = name;

}

}

import javautilHashMap;

import javautilMap;

public class Demo02

{

public static Map<, > recruit(Engineer[] Engineer)

{

Map<String, String> resultMap = new HashMap<String, String>();

for (Engineer e : Engineer)

{

if ("在写Java代码"equals(ewriterCode()))

resultMapput(egetName(), "Java工程师");

else

resultMapput(egetName(), "iOS工程师");

}

return resultMap;

}

public static void main(String[] args)

{

JavaEngineer JavaEngineer01 = new JavaEngineer();

JavaEngineer01setName("Sunny");

JavaEngineer JavaEngineer02 = new JavaEngineer();

JavaEngineer02setName("Jain");

iOSEngineer iOSEngineer = new iOSEngineer();

iOSEngineersetName("Tony");

Engineer[] Engineers = new Engineer[] { JavaEngineer01, JavaEngineer02, iOSEngineer };

Map<String, String> resultMap = new HashMap<String, String>(3);

resultMap = (Map<String, String>) recruit(Engineers);

for (MapEntry<String, String> entry : resultMapentrySet())

{

String key = entrygetKey();

String value = entrygetValue();

Systemoutprintln(key + ":" + value);

}

}

}

/

运行结果：

Sunny:Java工程师

Jain:Java工程师

Tony:iOS工程师

/

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