如何在类worker中修复我的方法toString？

public class Worker {
    private String name;
    private int age;
    // 其他属性和方法

    // 构造方法

    // getter和setter方法

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("Worker: ");
        sb.append("name=").append(name);
        sb.append(", age=").append(age);
        // 拼接其他属性

        return sb.toString();
    }
}

Worker worker = new Worker("John", 30);
String workerString = worker.toString();
System.out.println(workerString);

Worker: name=John, age=30