如何在TreeMap中将当前类的实例作为值返回？

import java.util.TreeMap;

class MyClass {
    private int id;
    private String name;
    
    // 构造方法等其他代码省略
    
    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        MyClass other = (MyClass) obj;
        return id == other.id && name.equals(other.name);
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(id, name);
    }
}

public class Main {
    public static void main(String[] args) {
        TreeMap<MyClass, String> treeMap = new TreeMap<>();
        
        MyClass instance1 = new MyClass(1, "Instance 1");
        MyClass instance2 = new MyClass(2, "Instance 2");
        
        treeMap.put(instance1, "Value 1");
        treeMap.put(instance2, "Value 2");
        
        // 通过实例获取对应的值
        String value = treeMap.get(instance1);
        System.out.println(value); // 输出：Value 1
    }
}