You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.8 KiB
95 lines
3.8 KiB
import javafx.application.Application;
|
|
import javafx.scene.Scene;
|
|
import javafx.scene.control.Alert;
|
|
import javafx.scene.control.Button;
|
|
import javafx.scene.control.Label;
|
|
import javafx.scene.control.TextField;
|
|
import javafx.scene.layout.VBox;
|
|
import javafx.stage.Stage;
|
|
|
|
public class test2 extends Application {
|
|
@Override
|
|
public void start(Stage primaryStage) {
|
|
// 创建VBox作为垂直布局容器15
|
|
VBox vBox = new VBox(10.0);
|
|
// 创建提示标签
|
|
Label promptLabel = new Label("请输入一个十进制数");
|
|
promptLabel.setStyle("-fx-font-weight: bold;"); // 设置字体为粗体
|
|
// 创建输入框并设置提示文本
|
|
TextField inputField = new TextField();
|
|
inputField.setPromptText("输入数字");
|
|
// 创建标签用于显示转换结果
|
|
Label binaryLabel = new Label();
|
|
Label octalLabel = new Label();
|
|
Label hexLabel = new Label();
|
|
Label base6Label = new Label();
|
|
// 创建转换按钮并设置事件处理器
|
|
Button convertButton = new Button("转换");
|
|
convertButton.setOnAction(e -> {
|
|
try {
|
|
String inputText = inputField.getText();
|
|
int number;
|
|
if (inputText.matches("-?\\d+")) { // 十进制
|
|
number = Integer.parseInt(inputText);
|
|
}
|
|
else if (inputText.matches("-?[0-7]+")) { // 八进制
|
|
number = Integer.parseInt(inputText, 8);
|
|
}
|
|
else if (inputText.matches("-?[01]+")) { // 二进制
|
|
number = Integer.parseInt(inputText, 2);
|
|
}
|
|
else if (inputText.matches("-?[\\da-fA-F]+")) { // 十六进制
|
|
number = Integer.parseInt(inputText, 16);
|
|
}
|
|
else {
|
|
throw new NumberFormatException();
|
|
}
|
|
binaryLabel.setText(String.format("二进制: %s", Integer.toBinaryString(number).toUpperCase()));
|
|
octalLabel.setText(String.format("八进制: %s", Integer.toOctalString(number)));
|
|
hexLabel.setText(String.format("十六进制: %s", Integer.toHexString(number).toUpperCase()));
|
|
base6Label.setText(String.format("六进制: %s", toBase6String(number)));
|
|
vBox.getChildren().add(base6Label);
|
|
}
|
|
catch (NumberFormatException ex) {
|
|
Alert alert = new Alert(Alert.AlertType.ERROR);
|
|
alert.setTitle("输入错误");
|
|
alert.setHeaderText("无效输入");
|
|
alert.setContentText("请输入一个有效的数字。");
|
|
alert.showAndWait();
|
|
}
|
|
});
|
|
// 将组件添加到布局中
|
|
vBox.getChildren().addAll(promptLabel, inputField, convertButton, binaryLabel, octalLabel, hexLabel);
|
|
// 设置场景和舞台
|
|
Scene scene = new Scene(vBox, 300.0, 200.0);
|
|
primaryStage.setTitle("进制转换器");
|
|
primaryStage.setScene(scene);
|
|
primaryStage.show();
|
|
}
|
|
// 将十进制数转换为六进制字符串的方法
|
|
private String toBase6String(int number) {
|
|
if (number == 0) {
|
|
return "0";
|
|
}
|
|
else {
|
|
StringBuilder sb = new StringBuilder();
|
|
char[] digits = new char[]{'0', '1', '2', '3', '4', '5'};
|
|
boolean isNegative = number < 0;
|
|
if (isNegative) {
|
|
number = -number;
|
|
}
|
|
while (number > 0) {
|
|
sb.insert(0, digits[number % 6]);
|
|
number /= 6;
|
|
}
|
|
if (isNegative) {
|
|
sb.insert(0, '-');
|
|
}
|
|
return sb.toString();
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
launch(args);
|
|
}
|
|
} |