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標題: 基于javafx的學生電子點名系統（在eclipse中編寫完成） [打印本頁]

作者: qq983511649 時間: 2019-5-19 19:04
標題: 基于javafx的學生電子點名系統（在eclipse中編寫完成）

功能清單：
1.成績加減分
2.加減分分值幅度可更改
3.可實現批量加分，按小組
4.查詢
5.班級品均分、統計圖等
6.課堂點名
7.課堂提問
8.考勤登記
9.考勤勘誤

部分關鍵代碼如下：
實現表格數據顯示和單元格可編輯，單元格事件監聽。
package application;

C1.setCellValueFactory(new PropertyValueFactory<Student,String>("rank"));
C2.setCellValueFactory(new PropertyValueFactory<Student,String>("numberrank"));
C3.setCellValueFactory(new PropertyValueFactory<Student,String>("fullName"));
C4.setCellValueFactory(new PropertyValueFactory<Student,String>("yourGender"));
C5.setCellValueFactory(new PropertyValueFactory<Student,String>("scholor"));
C6.setCellValueFactory(new PropertyValueFactory<Student,String>("major"));
C7.setCellValueFactory(new PropertyValueFactory<Student,String>("classrank"));
C8.setCellValueFactory(new PropertyValueFactory<Student,String>("totalabsences"));

C9.setCellValueFactory(new PropertyValueFactory<Student,String>("course1grade"));//+
C10.setCellValueFactory(new PropertyValueFactory<Student,String>("course2grade"));
C11.setCellValueFactory(new PropertyValueFactory<Student,String>("course3grade"));
C12.setCellValueFactory(new PropertyValueFactory<Student,String>("course4grade"));
C13.setCellValueFactory(new PropertyValueFactory<Student,String>("course5grade"));
Cgroup.setCellValueFactory(new PropertyValueFactory<Student,String>("groupname"));
C8.setCellFactory(TextFieldTableCell.forTableColumn());
//TextField tf = new TextField();
//String up = new String("+");
//String down = new String("-");
//up = up+DETAL.getText();
//down = down + DETAL.getText();
options = //可以寫一個輸入框獲取用戶滿意的分值遞增幅度，改
FXCollections.observableArrayList(
"+"+DETAL.getText(),
"-"+DETAL.getText(),
         "小組加分"
      );

C9.setCellFactory(tc -> {//combobox定義與監聽，往后+
            ComboBox<String> combo = new ComboBox<String>();
            combo.setItems(options);

            combo.setEditable(true);
            TableCell<Student, String> cell = new TableCell<Student, String>() {
                  protected void updateItem(String chuzhi, boolean empty) {
                     super.updateItem(chuzhi, empty);
                     if (empty) {
                        setGraphic(null);
                     } else {
                        combo.setValue(chuzhi);
                        setGraphic(combo);
                     }
                  }
            };
            combo.setOnAction(e -> {if(TABLE.isFocused()||this.TEXT.isFocused()||this.Usehelp.isFocused()||this.SEARCH.isFocused()||this.xiangqing.isFocused()||DETAL.isFocused()){return;}
            String keyname = TABLE.getItems().get(cell.getIndex()).getFullName();
            // System.out.println("options.get(1)"+options.get(1));
            String value = combo.getValue();
            // System.out.println("options.get(2)"+options.get(2));
            System.out.println("zzzzzz"+value);
            if(value.equals(options.get(0))  ||  value.equals(options.get(1) ))//1  2選項
            { value =String.valueOf(Integer.valueOf(value)+Integer.valueOf(TABLE.getItems().get(cell.getIndex()).getCourse1grade()));
            if(Integer.valueOf(value)>100){value = "100";}
            if(Integer.valueOf(value)<0){value = "0";}
            for (int i=0;i < students_bake.size();i++){
            if( (students_bake.get(i).getFullName().equals(keyname))  || (students_bake.get(i).getNumberrank().endsWith(keyname) )  )
            {
            students_bake.get(i).setCourse1grade(value);
            update(students_bake.get(i));//改成數據庫輸出

            TABLE.refresh();
            break;}
            }
            }
            if(value.equals(options.get(2))){//3選項
            int  valuq = Integer.valueOf(DETAL.getText())  ;
            System.out.println("valuq:"+valuq);
            System.out.println("1"+TABLE.getItems().get(cell.getIndex()).getGroupname());

               for (int i=0;i < students_bake.size();i++){
               if( (students_bake.get(i).getGroupname().equals(TABLE.getItems().get(cell.getIndex()).getGroupname()))){
               System.out.println(students_bake.get(i).getGroupname());
               int gradeq = Integer.valueOf(students_bake.get(i).getCourse1grade());
               int sum = valuq+gradeq;
               if(sum > 100){sum = 100;}

               students_bake.get(i).setCourse1grade(String.valueOf(sum));
               update(students_bake.get(i));
               }
               }
               TABLE.refresh();

            }
            else{
               System.out.println("aiwudniuwadq"+value);
            for (int i=0;i < students_bake.size();i++){
            if( (students_bake.get(i).getFullName().equals(keyname))  || (students_bake.get(i).getNumberrank().endsWith(keyname) )  )
            {
            students_bake.get(i).setCourse1grade(value);
            update(students_bake.get(i));
            //TABLE.getItems().get(cell.getIndex()).setCourse1grade(value);
            TABLE.refresh();
            break;}}
            }
            });

            return cell;
});

作者: admin 時間: 2019-5-20 02:04
本帖需要重新編輯補全電路原理圖,源碼,詳細說明與圖片即可獲得100+黑幣(帖子下方有編輯按鈕)

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