获取员工记录程序,该程序存储员工姓名,ID#,年薪和在ArrayList中雇用的日期。
ArrayList <Company> inventory = new ArrayList <Company>();
String ID, firstName, lastName, annualSal, startDate;
存储信息。
private void AddActionPerformed(java.awt.event.ActionEvent evt) {
ID = IDField.getText();
firstName = firstNameField.getText();
lastName = lastNameField.getText();
annualSal = annualSalField.getText();
startDate = startDateField.getText();
Company c = new Company(ID, firstName, lastName, annualSal, startDate);
inventory.add(c);
}
这会在调出时输出列表中的信息。
private void ListActionPerformed(java.awt.event.ActionEvent evt) {
String temp = "";
for (int x=0; x<=inventory.size()-1; x++) {
temp = temp + inventory.get(x).ID + " "
+ inventory.get(x).firstName + " "
+ inventory.get(x).lastName + " "
+ inventory.get(x).annualSal + " "
+ inventory.get(x).startDate + "\n";
}
employeeTArea.setText(temp);
此按钮将删除所选信息(通过输入ID#)并删除员工的记录。
private void removeButtonActionPerformed(java.awt.event.ActionEvent evt) {
//Code here on how to delete an unknown variable stored in array, possible to use getText?
}
答案 0 :(得分:0)
如果您希望能够按ID查找公司,我建议使用HashMap而不是ArrayList。 HashMap允许您通过关联查找键来存储Object。这是文档:http://docs.oracle.com/javase/6/docs/api/java/util/HashMap.html
以及一些有用的命令:
HashMap<Integer,Company> inventory = new HashMap<Integer,Company>();
inventory.put(ID,c);
Company c = inventory.get(ID);
inventory.remove(ID);