java day11 案例二，客户信息管理软件

客户代码

public class Customer {
	private String name;
	private char gender;
	private int age;
	private String phone;
	private String email;

	public Customer(String name, char gender, int age) {
		this(name, gender, age, "", "");
	}

	public Customer(String name, char gender, int age, String phone,
			String email) {
		this.name = name;
		this.gender = gender;
		this.age = age;
		this.phone = phone;
		this.email = email;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public char getGender() {
		return gender;
	}

	public void setGender(char gender) {
		this.gender = gender;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public String getPhone() {
		return phone;
	}

	public void setPhone(String phone) {
		this.phone = phone;
	}

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public String getDetails() {
		return name + "\t" + gender + "\t" + age + "\t\t" + phone + "\t" + email;
	}
}

客户list

public class CustomerList {
    private Customer[] customers;
    private int total = 0;

    public CustomerList(int totalCustomer) {
        customers = new Customer[totalCustomer];
    }

    public boolean addCustomer(Customer customer) {
        if (total >= customers.length) return false;
        
        customers[total++] = customer;
        return true;
    }
     
    public boolean replaceCustomer(int index, Customer cust) {
        if (index < 0 || index >= total) return false;
        
        customers[index] = cust;
        return true;
    }

    public boolean deleteCustomer(int index) {
        if (index < 0 || index >= total) return false;
        
        for (int i = index; i < total - 1; i++) {
            customers[i] = customers[i + 1];
        }
        
        customers[--total] = null;

        return true;
    }

    public Customer[] getAllCustomers() {
        Customer[] custs = new Customer[total];
        for (int i = 0; i < total; i++) {
            custs[i] = customers[i];
        }
        return custs;
    }

    public int getTotal() {
        return total;
    }

    public Customer getCustomer(int index) {
        if (index < 0 || index >= total) return null;
        
        return customers[index];
    }
}

客户界面

public class CustomerView {
	private CustomerList customers = new CustomerList(10);

	public CustomerView() {
		Customer cust = new Customer("张三", '男', 30, "010-56253825",
				"[email protected]");
		customers.addCustomer(cust);
	}

	public void enterMainMenu() {
		boolean loopFlag = true;
		do {
			System.out
					.println("\n-----------------客户信息管理软件-----------------\n");
			System.out.println("                   1 添 加 客 户");
			System.out.println("                   2 修 改 客 户");
			System.out.println("                   3 删 除 客 户");
			System.out.println("                   4 客 户 列 表");
			System.out.println("                   5 退       出\n");
			System.out.print("                   请选择(1-5)：");

			char key = CMUtility.readMenuSelection();
			System.out.println();
			switch (key) {
			case '1':
				addNewCustomer();
				break;
			case '2':
				modifyCustomer();
				break;
			case '3':
				deleteCustomer();
				break;
			case '4':
				listAllCustomers();
				break;
			case '5':
				System.out.print("确认是否退出(Y/N)：");
				char yn = CMUtility.readConfirmSelection();
				if (yn == 'Y')
					loopFlag = false;
				break;
			}
		} while (loopFlag);
	}

	private void addNewCustomer() {
		System.out.println("---------------------添加客户---------------------");
		System.out.print("姓名：");
		String name = CMUtility.readString(4);
		System.out.print("性别：");
		char gender = CMUtility.readChar();
		System.out.print("年龄：");
		int age = CMUtility.readInt();
		System.out.print("电话：");
		String phone = CMUtility.readString(15);
		System.out.print("邮箱：");
		String email = CMUtility.readString(15);

		Customer cust = new Customer(name, gender, age, phone, email);
		boolean flag = customers.addCustomer(cust);
		if (flag) {
			System.out
					.println("---------------------添加完成---------------------");
		} else {
			System.out.println("----------------记录已满,无法添加-----------------");
		}
	}

	private void modifyCustomer() {
		System.out.println("---------------------修改客户---------------------");

		int index = 0;
		Customer cust = null;
		for (;;) {
			System.out.print("请选择待修改客户编号(-1退出)：");
			index = CMUtility.readInt();
			if (index == -1) {
				return;
			}

			cust = customers.getCustomer(index - 1);
			if (cust == null) {
				System.out.println("无法找到指定客户！");
			} else
				break;
		}

		System.out.print("姓名(" + cust.getName() + ")：");
		String name = CMUtility.readString(4, cust.getName());

		System.out.print("性别(" + cust.getGender() + ")：");
		char gender = CMUtility.readChar(cust.getGender());

		System.out.print("年龄(" + cust.getAge() + ")：");
		int age = CMUtility.readInt(cust.getAge());

		System.out.print("电话(" + cust.getPhone() + ")：");
		String phone = CMUtility.readString(15, cust.getPhone());

		System.out.print("邮箱(" + cust.getEmail() + ")：");
		String email = CMUtility.readString(15, cust.getEmail());

		cust = new Customer(name, gender, age, phone, email);

		boolean flag = customers.replaceCustomer(index - 1, cust);
		if (flag) {
			System.out
					.println("---------------------修改完成---------------------");
		} else {
			System.out.println("----------无法找到指定客户,修改失败--------------");
		}
	}

	private void deleteCustomer() {
		System.out.println("---------------------删除客户---------------------");

		int index = 0;
		Customer cust = null;
		for (;;) {
			System.out.print("请选择待删除客户编号(-1退出)：");
			index = CMUtility.readInt();
			if (index == -1) {
				return;
			}

			cust = customers.getCustomer(index - 1);
			if (cust == null) {
				System.out.println("无法找到指定客户！");
			} else
				break;
		}

		System.out.print("确认是否删除(Y/N)：");
		char yn = CMUtility.readConfirmSelection();
		if (yn == 'N')
			return;

		boolean flag = customers.deleteCustomer(index - 1);
		if (flag) {
			System.out
					.println("---------------------删除完成---------------------");
		} else {
			System.out.println("----------无法找到指定客户,删除失败--------------");
		}
	}

	private void listAllCustomers() {
        System.out.println("---------------------------客户列表---------------------------");
        Customer[] custs = customers.getAllCustomers();
        if (custs.length == 0) {
            System.out.println("没有客户记录！");
        } else {
            System.out.println("编号\t姓名\t性别\t年龄\t\t电话\t\t邮箱");
            for (int i = 0; i < custs.length; i++) {
//            System.out.println(i + 1 + "\t" + custs[i].getName() + "\t" + custs[i].getGender() + "\t" + custs[i].getAge() + "\t\t" + custs[i].getPhone() + "\t" + custs[i].getEmail());
            	System.out.println((i+1) + "\t" + custs[i].getDetails());
            }
        }

        System.out.println("-------------------------客户列表完成-------------------------");
    }

	public static void main(String[] args) {
		CustomerView cView = new CustomerView();
		cView.enterMainMenu();
	}
}