按照你的要求編寫的Java程序如下
創(chuàng)新互聯(lián)建站是一家集網(wǎng)站建設(shè),班戈企業(yè)網(wǎng)站建設(shè),班戈品牌網(wǎng)站建設(shè),網(wǎng)站定制,班戈網(wǎng)站建設(shè)報(bào)價(jià),網(wǎng)絡(luò)營(yíng)銷,網(wǎng)絡(luò)優(yōu)化,班戈網(wǎng)站推廣為一體的創(chuàng)新建站企業(yè)，幫助傳統(tǒng)企業(yè)提升企業(yè)形象加強(qiáng)企業(yè)競(jìng)爭(zhēng)力?？沙浞譂M足這一群體相比中小企業(yè)更為豐富、高端、多元的互聯(lián)網(wǎng)需求。同時(shí)我們時(shí)刻保持專業(yè)、時(shí)尚、前沿，時(shí)刻以成就客戶成長(zhǎng)自我，堅(jiān)持不斷學(xué)習(xí)、思考、沉淀、凈化自己，讓我們?yōu)楦嗟钠髽I(yè)打造出實(shí)用型網(wǎng)站。
public?class?CC?{
public?static?void?main(String[]?args)?{
int?N=5;
for(int?i=0;iN;i++){
for(int?j=0;jN-i;j++){
System.out.print("?");
}
for(int?j=0;j=i;j++){
System.out.print((char)('a'+i)+"?");
}
System.out.println();
}
}
}
運(yùn)行結(jié)果
public class JavaPractise {
public static void main(String[] args) {
JavaPractise o = new JavaPractise();
String str = "1342973451345";
String subStr = o.getMaxLengthAddPart(str);
System.out.println(subStr);
String binaryFlow = "000011110000011111";
String sameSubStr = o.getMaxSameSubStr(binaryFlow);
System.out.println(sameSubStr);
String letterFlow = "aaBBBcCCCCddddddEEEE";
String sameLettersSubStr = o.getMaxSameLettersSubStr(letterFlow);
System.out.println(sameLettersSubStr);
}
/**
* 校驗(yàn)字符串是否符合數(shù)字規(guī)范
* */
private boolean isNum(String str){
boolean result = true;
if(str.length() 1)
return false;
for(int i = 0 ; i str.length(); i ++){
if(str.charAt(i) '0' || ?str.charAt(i) '9')
return false;
}
return result;
}
private boolean isBinaryFlow(String binaryFlow){
boolean result = true;
if(binaryFlow.length() 1)
return false;
for(int i = 0 ; i binaryFlow.length(); i ++){
if(binaryFlow.charAt(i) != ?'0' ?binaryFlow.charAt(i) != '1')
return false;
}
return result;
}
private boolean isLetterFlow(String letterFlow){
boolean result = true;
if(letterFlow.length() 1)
return false;
for(int i = 0 ; i letterFlow.length(); i ++){
char cur = letterFlow.charAt(i);
if(!( ('z'= cur cur = 'a') || ('Z' = cur cur 'A') ) )
return false;
}
return result;
}
/**
* 獲取最長(zhǎng)增長(zhǎng)數(shù)字的子串
* */
private String getMaxLengthAddPart(String str){
str = str.trim();
if(!isNum(str))
return "";
String temp = ""+str.charAt(0);
String maxSubStr = temp;
for(int i = 1; i str.length(); i++){
char curChar = str.charAt(i);
char lastChar = str.charAt(i-1);
if( curChar lastChar){
temp += curChar;
if(i != (str.length()-1))
continue;//如果當(dāng)前節(jié)點(diǎn)為最后一個(gè)節(jié)點(diǎn)，那么強(qiáng)制進(jìn)入下面環(huán)節(jié)，進(jìn)行
}
maxSubStr = maxSubStr.length() temp.length() ? maxSubStr : temp;
temp = ""+curChar; //清空原數(shù)據(jù)，并從當(dāng)前節(jié)點(diǎn)記錄
}
return maxSubStr;
}
/**
* 二進(jìn)制流最長(zhǎng)字符串判定
* */
private String getMaxSameSubStr(String str){
str = str.trim();
if(!isBinaryFlow(str))
return "";
String temp = ""+str.charAt(0);
String maxSubStr = temp;
for(int i = 1; i str.length(); i++){
char curChar = str.charAt(i);
char lastChar = str.charAt(i-1);
if( curChar == lastChar){
temp += curChar;
if(i != (str.length()-1))
continue;//如果當(dāng)前節(jié)點(diǎn)為最后一個(gè)節(jié)點(diǎn)，那么強(qiáng)制進(jìn)入下面環(huán)節(jié)，進(jìn)行
}
maxSubStr = maxSubStr.length() temp.length() ? maxSubStr : temp;
temp = ""+curChar; //清空原數(shù)據(jù)，并從當(dāng)前節(jié)點(diǎn)記錄
}
return maxSubStr;
}
/**
* 字符串的最長(zhǎng)相同部分截取
* */
private String getMaxSameLettersSubStr(String str){
str = str.trim();
if(!isLetterFlow(str))
return "";
String temp = ""+str.charAt(0);
String maxSubStr = temp;
for(int i = 1; i str.length(); i++){
char curChar = str.charAt(i);
char lastChar = str.charAt(i-1);
if( curChar == lastChar){
temp += curChar;
if(i != (str.length()-1))
continue;//如果當(dāng)前節(jié)點(diǎn)為最后一個(gè)節(jié)點(diǎn)，那么強(qiáng)制進(jìn)入下面環(huán)節(jié)，進(jìn)行
}
maxSubStr = maxSubStr.length() temp.length() ? maxSubStr : temp;
temp = ""+curChar; //清空原數(shù)據(jù)，并從當(dāng)前節(jié)點(diǎn)記錄
}
return maxSubStr;
}
}
運(yùn)行結(jié)果如下：
我使用eclipse寫的這個(gè)練習(xí)，首先給你截個(gè)圖，抹掉的地方不是這個(gè)題的范疇，光標(biāo)擋住的地方是ModelScore
然后，先是ModelScore代碼：
package?Models;
public?class?ModelScore?{
private?double?mathScore;
private?double?englishScore;
private?double?javaScore;
private?static?final?int?type_Math?=?0,?type_English?=?1,?type_Java?=?2;
public?ModelScore(){
}
public?int?getNumberOfField(){
return?3;
}
public?ModelScore(double?mathScore,?double?englishScore,?double?javaScore){
this.mathScore?=?mathScore;
this.englishScore?=?englishScore;
this.javaScore?=?javaScore;
}
public?double?getMathScore(){
return?this.mathScore;
}
public?double?getEnglishScore(){
return?this.englishScore;
}
public?double?getJavaScore(){
return?this.javaScore;
}
public?void?setMathScore(double?mathScore){
this.mathScore?=?mathScore;
}
public?void?setEnglishScore(double?englishScore){
this.englishScore?=?englishScore;
}
public?void?setJavaScore(double?javaScore){
this.javaScore?=?javaScore;
}
public?double?getAverageScore(){
return?(double)Math.round((this.mathScore?+?this.englishScore?+?this.javaScore)?/?3?*?100)?/?100;
}
public?String?toString(){
return?"Scores:[Math:?"?+?getMathScore()?+?
",?English:?"?+?getEnglishScore()?+?",?Java:?"?+?getJavaScore()?+?
",?AverageScore:?"?+?getAverageScore()?+?"]";
}
public?ModelScore?clone(){
ModelScore?score?=?new?ModelScore();
score.setMathScore(this.getMathScore());
score.setEnglishScore(this.getEnglishScore());
score.setJavaScore(this.getJavaScore());
return?score;
}
public?double?getScore(int?type){
if(type?==?type_Math){
return?mathScore;
}
if(type?==?type_English){
return?englishScore;
}
if(type?==?type_Java){
return?javaScore;
}
return?0;
}
}
然后是ModelStudent代碼：
package?Models;
public?class?ModelStudent?{
private?String?studentID;
private?String?studentName;
private?ModelScore?score;
public?ModelStudent(){
}
public?ModelStudent(String?studentID,?String?studentName,?ModelScore?score){
this.studentID?=?studentID;
this.studentName?=?studentName;
this.score?=?score.clone();
}
public?String?getStudentID(){
return?this.studentID;
}
public?String?getStudentName(){
return?this.studentName;
}
public?ModelScore?getStudentScore(){
return?this.score.clone();
}
public?void?setStudentID(String?studentID){
this.studentID?=?studentID;
}
public?void?setStudentName(String?studentName){
this.studentName?=?studentName;
}
public?void?setStudentScore(ModelScore?score){
this.score?=?score.clone();
}
public?double?getAverageScore(){
return?score.getAverageScore();
}
public?ModelStudent?clone(){
ModelStudent?student?=?new?ModelStudent();
student.setStudentID(studentID);
student.setStudentName(studentName);
student.setStudentScore(score.clone());
return?student;
}
public?String?toString(){
return?"Student:[?ID:?"?+?getStudentID()?+?",?Name:?"
+?getStudentName()?+?",?"?+?getStudentScore()?+?"]";
}
public?String?getNameAndEverayScore(){
return?"Name:?"?+?studentName?+?",?average?score:?"?+?getAverageScore();
}
}
最后是主函數(shù)所在的類StudentScoreTester代碼：
import?java.util.ArrayList;
import?java.util.Scanner;
import?Models.ModelScore;
import?Models.ModelStudent;
public?class?StudentScoreTester?{
static?final?int?type_Math?=?0,?type_English?=?1,?type_Java?=?2?;
public?static?void?main(String[]?args)?throws?NumberFormatException{
Scanner?input?=?new?Scanner(System.in);
String?studentID?=?"?",?studentName,?searchedStudentName;
double?studentMathScore,?studentEnglishScore,?studentJavaScore;
ModelScore?studentScore;
ModelStudent?student;
ArrayListModelStudent?students?=?new?ArrayListModelStudent();
ArrayListModelStudent?studentsWithMaxMath,?studentsWithMinMath;
ArrayListModelStudent?studentsWithMaxEnglish,?studentsWithMinEnglish;
ArrayListModelStudent?studentsWithMaxJava,?studentsWithMinJava;
ArrayListModelStudent?searchedStudents;
double[]?averageScores;
double?averageScoreForMath,?averageScoreForEnglish,?averageScoreForJava;
double?maxScoreForMath,?maxScoreForEnglish,?maxScoreForJava;
double?minScoreForMath,?minScoreForEnglish,?minScoreForJava;
while(!studentID.equalsIgnoreCase("end")){
System.out.print("輸入若干學(xué)生的學(xué)號(hào)，姓名，以及三科成績(jī)（數(shù)學(xué)，英語，Java），?以輸入end作為結(jié)束輸入：");
studentID?=?input.next();
if(studentID.equalsIgnoreCase("end")){
break;
}
studentName?=?input.next();
studentMathScore?=?Double.valueOf(input.next());
studentEnglishScore?=?Double.valueOf(input.next());
studentJavaScore?=?Double.valueOf(input.next());
studentScore?=?new?ModelScore(studentMathScore,?studentEnglishScore,?studentJavaScore);
student?=?new?ModelStudent(studentID,?studentName,?studentScore);
students.add(student);
}
System.out.println("*******************************");
System.out.println("計(jì)算出所有學(xué)生平均成績(jī)，并以降序顯示......");
sortByAverageScore(students);
for(ModelStudent?everyStudent:?students){
System.out.println(everyStudent.getNameAndEverayScore());
}
System.out.println("*******************************");
System.out.println("全組每科平均成績(jī)......");
averageScores?=?calculateAverageScore(students);
averageScoreForMath?=?averageScores[type_Math];
averageScoreForEnglish?=?averageScores[type_English];
averageScoreForJava?=?averageScores[type_Java];
System.out.println("數(shù)學(xué)：?"?+?averageScoreForMath);
System.out.println("英語：?"?+?averageScoreForEnglish);
System.out.println("Java：?"?+?averageScoreForJava);
System.out.println("*******************************");
System.out.println("每科最好以及最差成績(jī)的學(xué)生......");
studentsWithMaxMath?=?findStudentWithMaxScore(students,?type_Math);
studentsWithMinMath?=?findStudentWithMinScore(students,?type_Math);
studentsWithMaxEnglish?=?findStudentWithMaxScore(students,?type_English);
studentsWithMinEnglish?=?findStudentWithMinScore(students,?type_English);
studentsWithMaxJava?=?findStudentWithMaxScore(students,?type_Java);
studentsWithMinJava?=?findStudentWithMinScore(students,?type_Java);
System.out.println("??????#########################");
System.out.println("數(shù)學(xué)最高成績(jī)......");
for(ModelStudent?studentWithMaxMath:?studentsWithMaxMath){
System.out.println(studentWithMaxMath.getStudentName()?+?",?"?+?studentWithMaxMath.getStudentScore().getScore(type_Math));
}
System.out.println("\n數(shù)學(xué)最低成績(jī)......");
for(ModelStudent?studentWithMinMath:?studentsWithMinMath){
System.out.println(studentWithMinMath.getStudentName()?+?",?"?+?studentWithMinMath.getStudentScore().getScore(type_Math));
}
System.out.println("??????#########################");
System.out.println("英語最高成績(jī)......");
for(ModelStudent?studentWithMaxEnglish:?studentsWithMaxEnglish){
System.out.println(studentWithMaxEnglish.getStudentName()?+?",?"?+?studentWithMaxEnglish.getStudentScore().getScore(type_English));
}
System.out.println("\n英語最低成績(jī)......");
for(ModelStudent?studentWithMinEnglish:?studentsWithMinEnglish){
System.out.println(studentWithMinEnglish.getStudentName()?+?",?"?+?studentWithMinEnglish.getStudentScore().getScore(type_English));
}
System.out.println("??????#########################");
System.out.println("Java最高成績(jī)......");
for(ModelStudent?studentWithMaxJava:?studentsWithMaxJava){
System.out.println(studentWithMaxJava.getStudentName()?+?",?"?+?studentWithMaxJava.getStudentScore().getScore(type_Java));
}
System.out.println("\nJava最低成績(jī)......");
for(ModelStudent?studentWithMinJava:?studentsWithMinJava){
System.out.println(studentWithMinJava.getStudentName()?+?",?"?+?studentWithMinJava.getStudentScore().getScore(type_Java));
}
System.out.println("*******************************");
System.out.print("輸入要查找的學(xué)生姓名：?");
input.nextLine();
searchedStudentName?=?input.nextLine();
searchedStudents?=?searchStudentsByName(students,?searchedStudentName);
System.out.println("查找結(jié)果是......");
if(searchedStudents.size()?!=?0){
for(ModelStudent?everyStudent:?searchedStudents){
System.out.println(everyStudent);
}
}
else{
System.out.println("查無此學(xué)生");
}
}
public?static?void?sortByAverageScore(ArrayListModelStudent?students){
for(int?i?=?0;?i??students.size()?-?1;?i++){
for(int?j?=?i;?j??students.size();?j++){
if(students.get(i).getAverageScore()??students.get(j).getAverageScore()){
ModelStudent?tempStudent?=?students.get(i);
students.set(i,?students.get(j));
students.set(j,?tempStudent);
}
}
}
}
public?static?double[]?calculateAverageScore(ArrayListModelStudent?students){
double[]?averageScore?=?new?double[students.get(0).getStudentScore().getNumberOfField()];
for(int?i?=?0;?i??students.size();?i++){
ModelStudent?currentStudent?=?students.get(i);
averageScore[type_Math]?+=?currentStudent.getStudentScore().getMathScore();
averageScore[type_English]?+=?currentStudent.getStudentScore().getEnglishScore();
averageScore[type_Java]?+=?currentStudent.getStudentScore().getJavaScore();
}
averageScore[type_Math]?=?(double)Math.round(averageScore[type_Math]/?students.size()?*?100)?/?100;
averageScore[type_English]?=?(double)Math.round(averageScore[type_English]/?students.size()?*?100)?/?100;
averageScore[type_Java]?=?(double)Math.round(averageScore[type_Java]/?students.size()?*?100)?/?100;
return?averageScore;
}
public?static?ArrayListModelStudent?findStudentWithMaxScore(ArrayListModelStudent?students,?int?type){
ArrayListModelStudent?studentsWithMaxScore?=?new?ArrayListModelStudent();
ModelStudent?studentWithMaxScore?=?students.get(0);
for(ModelStudent?everyStudent:?students){
if(studentWithMaxScore.getStudentScore().getScore(type)??everyStudent.getStudentScore().getScore(type)){
studentWithMaxScore?=?everyStudent.clone();
}
}
for(ModelStudent?everyStudent:?students){
if(studentWithMaxScore.getStudentScore().getScore(type)?==?everyStudent.getStudentScore().getScore(type)){
studentsWithMaxScore.add(everyStudent);
}
}
return?studentsWithMaxScore;
}
public?static?ArrayListModelStudent?findStudentWithMinScore(ArrayListModelStudent?students,?int?type){
ArrayListModelStudent?studentsWithMaxScore?=?new?ArrayListModelStudent();
ModelStudent?studentWithMaxScore?=?students.get(0);
for(ModelStudent?everyStudent:?students){
if(studentWithMaxScore.getStudentScore().getScore(type)??everyStudent.getStudentScore().getScore(type)){
studentWithMaxScore?=?everyStudent.clone();
}
}
for(ModelStudent?everyStudent:?students){
if(studentWithMaxScore.getStudentScore().getScore(type)?==?everyStudent.getStudentScore().getScore(type)){
studentsWithMaxScore.add(everyStudent);
}
}
return?studentsWithMaxScore;
}
public?static?ArrayListModelStudent?searchStudentsByName(ArrayListModelStudent?students,?String?studentName){
ArrayListModelStudent?resultStudents?=?new?ArrayListModelStudent();
for(ModelStudent?everyStudent:?students){
if(everyStudent.getStudentName().equals(studentName)){
resultStudents.add(everyStudent);
}
}
return?resultStudents;
}
}
僅僅是給窗口添加背景的話是很簡(jiǎn)單的，添加上以下語句（自己去添加變量哈）：\x0d\x0a\x0d\x0alabel = new JLabel(background); //background為ImageIcon\x0d\x0a// 把標(biāo)簽的大小位置設(shè)置為圖片剛好填充整個(gè)面板 \x0d\x0alabel.setBounds(0, 0, this.getWidth(), this.getHeight());\x0d\x0a//添加圖片到frame的第二層(把背景圖片添加到分層窗格的最底層作為背景)\x0d\x0athis.getLayeredPane().add(label,new Integer(Integer.MIN_VALUE));\x0d\x0a//把內(nèi)容窗格轉(zhuǎn)化為JPanel，否則不能用方法setOpaque()來使內(nèi)容窗格透明\x0d\x0ajPanel=(JPanel)this.getContentPane();\x0d\x0a//設(shè)置透明\x0d\x0ajPanel.setOpaque(false);\x0d\x0a\x0d\x0a然后你上面那個(gè)JPanel p也設(shè)置成透明就可以了
(a)It is insert sort algorithm of the above code segment.上面的代碼是插入排序算法
(b)
EXAMPLE
AEXMPLE
AEMXPLE
AEMPXLE
AELMPXE
AEELMPX
(c)
Require 6 sorting steps.
補(bǔ)充完整的插入排序算法的Java程序如下
public class A{
public static void main(String[] args){
char[] a={'E','X','A','M','P','L','E'};
char v;
int i,j,n=a.length,count=0;
for (i =1; i n; i++){
v = a[i];
j = i;
while(j 0 a[j-1] v) {
a[j] = a[j-1];
j--;
}
a[j] = v;
count++;
System.out.println(new String(a));
}
System.out.println("Require "+count+" sorting steps.");
}
}
StackExtension類我測(cè)試過了,沒有問題.
完整的StackExtension類如下
import dataStructures.LinkedStack;
public class StackExtension extends LinkedStack{
public int sum(){
int n=0;
int size=super.size();
for(int i=0;isize;i++){
n=n+Integer.parseInt(String.valueOf(super.pop()));
}
return n;
}
public String displayPalindromes(){
String s="";
int size=super.size();
for(int i=0;isize;i++){
s=s+String.valueOf(super.get(i))+" ";
}
for(int i=0;isize;i++){
s=s+String.valueOf(super.pop())+" ";
}
return s;
}
}
運(yùn)行結(jié)果
重慶分公司
重慶分公司
