1 public class Main {
 2     public static void main(String[] args) {
 3         Scanner sc  = new Scanner(System.in);
 4         Student stu[] = new Student[5];
 5 
 6         int i ;
 7         //依次輸入5個學(xué)生的信息
 8         for(i = 0; i < 5; i++){
 9             stu[i] = new Student(sc.next(), sc.next(),sc.nextFloat(),sc.nextFloat(),sc.nextFloat());
10             float[] totoal = new float[5]; //總成績
11             float[] average = new float[5]; //平均成績
12             totoal[i] = stu[i].getChinese() + stu[i].getMath() + stu[i].getPhysic();
13             average[i] = totoal[i]/3;
14             System.out.println(stu[i].getIdnum() + " " + stu[i].getName()+ " " + (int)totoal[i] + " " + String.format("%.2f",average[i]));
15             stu[i] = null;
16         }
17     }
18 }

 1 class Student1 {
 2     String idnum;
 3     String name;
 4     double chinese;
 5     double math;
 6     double physic;
 7     double total;
 8     double usual_average;
 9     double final_average;
10     public Student1(String idnum, String name, double chinese, double math, double physic,double total,double usual_average,double final_average){
11         this.idnum = idnum;//獲取學(xué)號
12         this.name = name;//獲取姓名
13         this.chinese = chinese;//獲取中文成績
14         this.math = math; //獲取數(shù)學(xué)成績
15         this.physic = physic;   //獲取物理成績
16         this.total = total;  //獲取平時成績的總分
17         this.usual_average = usual_average;
18         this.final_average = final_average;
19     }
20 }
21 
22 class Student2{//學(xué)生成績
23     float usual;
24     float Final;
25     public Student2( float usual, float Final) {
26         this.usual = usual;
27         this.Final = Final;
28     }
29 }
30 
31 public class Main {
32     public static void main(String[] args) {
33         Scanner sc  = new Scanner(System.in);
34         Student1 stu[] = new Student1[3];
35 
36         //依次輸入3個學(xué)生的信息
37         for(int i = 0; i < 3; i++) {//學(xué)生
38             String student_idnum = "";
39             String student_name = "";
40             double chinese_grades = 0;//初始化語文成績
41             float chinese_usual = 0;
42             float chinese_final = 0;
43             double math_grades = 0;//初始化數(shù)學(xué)成績
44             float math_usual = 0;
45             float math_final = 0;
46             double physic_grades = 0;//初始化物理成績
47             float physic_usual = 0;
48             float physic_final = 0;
49             double total_grades ;
50             double usual_grades;  //平時成績的平均分
51             double final_grades; //期末成績的平均分
52 
53             for(int j = 0; j < 3; j ++) {
54                 String str1 = sc.nextLine();//直接讀取一整行信息
55                 //將讀取到的信息按一個英文空格進(jìn)行分割成多個字符串，存在strs數(shù)組中，方便后續(xù)課程的匹配
56                 String[] strs = str1.split(" ");
57                 student_idnum = strs[0];
58                 student_name = strs[1];
59                 //判斷課程
60                 if ("語文".equals(strs[2])) {
61                     chinese_usual = Float.parseFloat(strs[3]);
62                     chinese_final = Float.parseFloat(strs[4]);
63                     Student2 Chinese = new Student2(chinese_usual, chinese_final);
64                     chinese_grades = chinese_usual * 0.4 + chinese_final * 0.6;
65                 } else if ("數(shù)學(xué)".equals(strs[2])) {
66                     math_usual = Float.parseFloat(strs[3]);
67                     math_final = Float.parseFloat(strs[4]);
68                     Student2 Math = new Student2(math_usual, math_final);
69                     math_grades = math_usual * 0.4 + math_final * 0.6;
70                 } else if ("物理".equals(strs[2])) {
71                     physic_usual = Float.parseFloat(strs[3]);
72                     physic_final = Float.parseFloat(strs[4]);
73                     Student2 Physic = new Student2(physic_usual, physic_final);
74                     physic_grades = physic_usual * 0.4 + physic_final * 0.6;
75                 }
76             }
77             total_grades = (int)chinese_grades + (int)math_grades + (int) physic_grades ;
78             usual_grades = (chinese_usual + math_usual + physic_usual)/3;
79             final_grades = (chinese_final + math_final + physic_final)/3;
80             stu[i] = new Student1(student_idnum,student_name,chinese_grades,math_grades,physic_grades,total_grades,usual_grades,final_grades);
81         }
82         for(Student1 student : stu){
83             System.out.println(student.idnum + " " + student.name + " " + String.format("%.0f",student.total) + " " + String.format("%.2f",student.usual_average) + " " + String.format("%.2f",student.final_average) + " " + String.format("%.2f",student.total/3));
84         }
85     }
86 }

 1 public class Main {
 2     public static void main(String[] args) {
 3         // 初始化菜譜
 4         Dish dish1 = new Dish("西紅柿炒蛋", 15);
 5         Dish dish2 = new Dish("清炒土豆絲", 12);
 6         Dish dish3 = new Dish("麻婆豆腐", 12);
 7         Dish dish4 = new Dish("油淋生菜", 9);
 8 
 9         Menu menu = new Menu();
10         menu.addDish(dish1);
11         menu.addDish(dish2);
12         menu.addDish(dish3);
13         menu.addDish(dish4);
14 
15         // 輸入訂單信息
16         Scanner scanner = new Scanner(System.in);
17         Order order = new Order();
18 
19         String input = scanner.nextLine();
20         while (!input.equals("end")) {
21             String[] parts = input.split(" ");
22             String dishName = parts[0];
23             int portion = Integer.parseInt(parts[1]);
24             Dish dish = menu.searchDish(dishName);
25             if (dish == null) {
26                 System.out.println(dishName + " does not exist");
27             } else {
28                 Record record = new Record(dish, portion);
29                 order.addRecord(record);
30             }
31             input = scanner.nextLine();
32         }
33 
34         // 計算訂單總價并輸出
35         int totalPrice = order.getTotalPrice();
36         System.out.println( totalPrice);
37     }
38 }

  1 //選課
  2 class choose{
  3     scores score;
  4     Stu student;
  5     lessons lesson;
  6 }
  7 //課程
  8 class lessons{
  9     String lesson_name;
 10     String course;//必修或選修
 11     String option;//考察方式
 12     public void setLesson_name(String lesson_name){
 13         this.lesson_name = lesson_name;
 14     }
 15     public String getLesson_name(){
 16         return lesson_name;
 17     }
 18     public void setCourse(String course){
 19         this.course = course;
 20     }
 21     public String getCourse(){
 22         return course;
 23     }
 24     public void setOption(String option){
 25         this.option = option;
 26     }
 27     public String getOption(){
 28         return option;
 29     }
 30     lessons(String lesson_name , String course , String option){
 31         setLesson_name(lesson_name);
 32         setCourse(course);
 33         setOption(option);
 34     }
 35 }
 36 //學(xué)生
 37 class Stu{
 38     String idnum;
 39     String name;
 40     public void setIdnum(String idnum){
 41         this.idnum = idnum;
 42     }
 43     public String getIdnum(){
 44         return idnum;
 45     }
 46     public void setName(String name){
 47         this.name = name;
 48     }
 49     public String getName(){
 50         return name;
 51     }
 52     Stu(String idnum,String name){
 53         setIdnum(idnum);
 54         setName(name);
 55     }
 56 }
 57 //班級
 58 class Classes{
 59     Stu student;
 60     String class_num;
 61     HashMap<String,Stu> Stus;
 62     Classes(String class_num){
 63         setClassNum(class_num);
 64     }
 65     public void setClassNum(String class_num) {
 66         this.class_num = class_num;
 67     }
 68     public String getClassNum() {
 69         return class_num;
 70     }
 71     public void addStudent(Stu student) {
 72         Stus.put(student.getIdnum() , student);
 73     }
 74 }
 75 //成績
 76 abstract class scores{
 77     int All_score;
 78     abstract void getAll_score();
 79 }
 80 //考試成績
 81 class exam_score extends scores{
 82     int usual_score;
 83     int final_score;
 84     exam_score(int usual_score , int final_score){
 85         setUsual_score(usual_score);
 86         setFinal_score(final_score);
 87     }
 88     public void setUsual_score(int usual_score) {
 89         this.usual_score = usual_score;
 90     }
 91     public int getUsual_score() {
 92         return usual_score;
 93     }
 94     public void setFinal_score(int final_score) {
 95         this.final_score = final_score;
 96     }
 97     public int getFinal_score() {
 98         return final_score;
 99     }
100     @Override
101     void getAll_score() {
102         All_score = (int) (usual_score*0.3+final_score*0.7);
103     }
104 }
105 //考察成績
106 class inspect_score extends scores{
107      int finalGrade;
108     inspect_score(int finalGrade) {
109         setFinalGrade(finalGrade);
110     }
111     public void setFinalGrade(int finalGrade) {
112         this.finalGrade = finalGrade;
113     }
114     public int getFinalGrade() {
115         return finalGrade;
116     }
117     @Override
118     void getAll_score() {
119         All_score = finalGrade;
120     }
121 }
122 /**********此處省略輸入、輸出類**********/308 
309 public class Main {
310     //throws IOException表示該方法可能會拋出IOException異常，需要通過異常處理機(jī)制進(jìn)行處理
311      public static void main(String[] args) throws IOException{
312          //InputStreamReader(System.in)用于將字節(jié)流轉(zhuǎn)換為字符流，這樣我們可以按字符的方式來讀取用戶輸入。
313          //BufferedReader則是一個字符緩沖流，它提供了更高效的讀取文本的方法，其中readLine()方法可以讀取一行用戶輸入。
314          BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
315          input inputs = new input();
316          inputs.outputs = new output();
317          String strs;
318 
319          while ((strs = in.readLine()) != null){
320              if(strs.equals("end"))  break;
321              inputs.getData(strs);
322          }
323 
324          inputs.outputs.stu_print(inputs.Stus , inputs.Choose );
325          inputs.outputs.lesson_print(inputs.Lessons , inputs.Choose );
326          inputs.outputs.class_print(inputs.Class , inputs.Choose );
327      }
328 }