Java自学习day11-客户管理系统

2021/5/5 20:28:25

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package com.atguigu.p2;

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

	public CustomerView() {
		Customer cust = new Customer("张三", '男', 30, "010-56253825",
				"abc@email.com");
		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();
	}
}


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