Question

我做了javafx应用程序，显示两个整数的gcd，我必须做一个循环，我使用while循环但我有一个问题，我不能显示该循环的结果我得到的错误是“无法解析符号t6”和“无法解析符号t4” 这是代码

package sample;

import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.text.Text;
import javafx.scene.text.TextFlow;
import javafx.stage.Stage;

import javafx.event.ActionEvent;
import java.net.URL;
import java.util.ResourceBundle;

public class Controller implements Initializable {
    int q, r1, r2, r3, r4, r;


    private Main main;
    private Stage primaryStage;


    public void setMain(Main main, Stage primaryStage) {
        this.main = main;
        this.primaryStage = primaryStage;
    }

    @FXML
    private Label label;
    @FXML
    private TextFlow tf;
    @FXML
    private TextArea ta;
    @FXML
    private Text t;
    @FXML
    private TextField field;
    @FXML
    private TextField field1;

    @FXML
    private void handleButtonAction(ActionEvent event) {
        String t1 = field.getText();
        String t2 = field1.getText();
        r1 = Integer.parseInt(t1);
        r2 = Integer.parseInt(t2);
        if (r1 < r2) {

            r3 = r2;
            r4 = r1;
            r = r3 % r4;
            q = r3 / r4;
            String t = ("r1=" + r3 + "     " + "r2=" + r4 + "       " + "q=" + q + "      " + "r=" + r);
            while (r != 0) {


                r3 = r4;
                r4 = r;
                r = r3 % r4;
                q = r3 / r4;
                String t6 = "r1=" + r3 + "     " + "r2=" + r4 + "       " + "q=" + q + "      " + "r=" + r;

            }
            String t7 = ("gcd=" + r4);
            label.setText(t+t6+t7);
        } else {
            r = r1 % r2;
            q = r1 / r2;
            String t3 = ("r1=" + r1 + "     " + "r2=" + r2 + "       " + "q=" + q + "      " + "r=" + r);
            while (r != 0) {


                r1 = r2;
                r2 = r;
                r = r1 % r2;
                q = r1 / r2;
                String t4 = ("r1=" + r1 + "     " + "r2=" + r2 + "       " + "q=" + q + "      " + "r=" + r);

            }
            String t5 = ("gcd=" + r2);
            label.setText(t3+t4+t5);




        }
        field.clear();
        field1.clear();
    }






    public void close(){
        primaryStage.close();
    }
    @Override
    public void initialize(URL url, ResourceBundle rb){}
    public void changeWindow(){
         main.secondWindow();
    }

}

Answer 1

String t4的范围只是while循环，只是将它声明为循环并且它将起作用。

javafx无法从循环中使用字符串变量

1 个答案: