如何用Java创建数字微调器？

How to create a Number Spinner in Java?

首先，创建一个SpinnerModel-

1	SpinnerModel value = new SpinnerNumberModel(50, 0, 75, 1);

现在，设置值-

1	JSpinner spinner = new JSpinner(value);

以下是创建数字微调器的示例-

例

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package my;
import javax.swing.*;
public class SwingDemo {
public static void main(String[] args) {
JFrame frame = new JFrame("Spinner Demo");
SpinnerModel value = new SpinnerNumberModel(50, 0, 75, 1);
JSpinner spinner = new JSpinner(value);
spinner.setBounds(50, 80, 70, 100);
frame.add(spinner);
frame.setSize(550,300);
frame.setLayout(null);
frame.setVisible(true);
}
}

这将产生以下输出-