java.lang.ClassCastException：java.util.LinkedHashMap无法转换为com.testing.models.Acco

，并添加案例代码：

java
import java.util.LinkedHashMap;
import java.util.Map;
public class Main {
    public static void main(String[] args) {
        Map map = new LinkedHashMap<>();
        
        // 添加Account对象到集合中
        map.put("account", new Account("John Doe", 1000));
        
        // 尝试将集合中的元素转换为Account对象
        Account account = (Account) map.get("account");
        
        // 打印账户信息
        System.out.println("Account Name: " + account.getName());
        System.out.println("Account Balance: " + account.getBalance());
    }
}
class Account {
    private String name;
    private double balance;
    
    public Account(String name, double balance) {
        this.name = name;
        this.balance = balance;
    }
    
    public String getName() {
        return name;
    }
    
    public double getBalance() {
        return balance;
    }
}

java
import java.util.LinkedHashMap;
import java.util.Map;
public class Main {
    public static void main(String[] args) {
        Map map = new LinkedHashMap<>();
        // 添加Account对象到集合中
        map.put("account", new Account("John Doe", 1000));
        // 获取集合中的元素
        Object obj = map.get("account");
        // 检查对象的类型是否为Account
        if (obj instanceof Account) {
            Account account = (Account) obj;
            // 打印账户信息
            System.out.println("Account Name: " + account.getName());
            System.out.println("Account Balance: " + account.getBalance());
        } else {
            System.out.println("Object is not an instance of Account");
        }
    }
}
class Account {
    private String name;
    private double balance;
    public Account(String name, double balance) {
        this.name = name;
        this.balance = balance;
    }
    public String getName() {
        return name;
    }
    public double getBalance() {
        return balance;
    }
}