如何在另一个类中编辑另一个类的文本？

// ClassA.java
public class ClassA {
    private String text;

    public void setText(String newText) {
        this.text = newText;
    }

    public String getText() {
        return this.text;
    }
}

// ClassB.java
public class ClassB {
    private ClassA classA;

    public ClassB() {
        this.classA = new ClassA();
    }

    public void editText(String newText) {
        classA.setText(newText);
    }
}

// Main.java
public class Main {
    public static void main(String[] args) {
        ClassB classB = new ClassB();
        classB.editText("Hello, World!");

        ClassA classA = new ClassA();
        System.out.println(classA.getText()); // Output: Hello, World!
    }
}