如何在ClassB中定义和使用ClassA集合

public class ClassA {
    private int id;
    private String name;

    public ClassA(int id, String name) {
        this.id = id;
        this.name = name;
    }

    public void printInfo() {
        System.out.println("ClassA - ID: " + id + ", Name: " + name);
    }
}

public class ClassB {
    private List<ClassA> classAList;

    public ClassB() {
        classAList = new ArrayList<>();
        // 初始化ClassA集合
        classAList.add(new ClassA(1, "Object 1"));
        classAList.add(new ClassA(2, "Object 2"));
        classAList.add(new ClassA(3, "Object 3"));
    }

    public void printClassAList() {
        // 使用ClassA集合
        for (ClassA classA : classAList) {
            classA.printInfo();
        }
    }
}

public class Main {
    public static void main(String[] args) {
        ClassB classB = new ClassB();
        classB.printClassAList();
    }
}