为几个字段实现compareTo方法

public class MyClass implements Comparable<MyClass> {
    private int field1;
    private String field2;
    private double field3;

    // 构造方法和其他方法省略

    @Override
    public int compareTo(MyClass other) {
        // 按照字段1进行比较
        int result = Integer.compare(this.field1, other.field1);
        if (result != 0) {
            return result;
        }

        // 按照字段2进行比较
        result = this.field2.compareTo(other.field2);
        if (result != 0) {
            return result;
        }

        // 按照字段3进行比较
        return Double.compare(this.field3, other.field3);
    }
}