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如何从另一个类中的Java类调用变量

[英]How do I call variables from a Java class in another Class

If I have a class with prepared statements, how do I call them when a user presses a button. 如果我有一个带有预处理语句的类,当用户按下按钮时如何调用它们。

class updateeButtonHandler implements ActionListener
{
    public void actionPerformed(ActionEvent e)
    {
        name = displayName.getText();
        price = bookPrice.getText();
        Queries update = new Queries();???????????????????
    }
}

Prepared Statement in different class 在不同的班级准备声明

public int update(String price, String name) throws SQLException {
        ps2.setString(1, name);
        ps2.setString(2, price);
        System.out.print("Update - ");
        return ps2.executeUpdate();
    }

Create an object and invoke the update method with parameters as shown below: 创建一个对象并使用如下所示的参数调用update方法:

public void actionPerformed(ActionEvent e) {
        name = displayName.getText();
        price = bookPrice.getText();
        Queries update = new Queries(); 
        update.update(price, name);//invoke the method using the object
}

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