Question

我试图将第一个代码块中的calculate值返回到我的GUI中的JLabel（这将是我粘贴的第二个代码块。

第一段代码 -

<myNode axs="p1">

现在，下面是我的第二个GUI代码 -

import java.util.Scanner;

public class SpeedingTicketClass {

Scanner scan=new Scanner (System.in); //Creating a scanner to read in users input of the speed limit and their speed.
//Variables used to store users input of the speed limit and the speed they are going.
int speedLimit=0;
int usersSpeed=0;
String usersName;

//Method being used to obtain the speed limit of the area with a do/while loop to make sure a correct speed limit is entered.
public int getSpeedLimit() {
    do {
        System.out.println("Please enter the speed limit: ");
        speedLimit=scan.nextInt();
    }while (!(speedLimit==70 || speedLimit==20| speedLimit==30 || speedLimit==40 || speedLimit==50 || speedLimit==60));
    return speedLimit;
}

//Method being used to obtain the speed in which a user is going at.
public int getUsersSpeed() {
    System.out.println("Please enter your speed: ");
    usersSpeed=scan.nextInt();
    return usersSpeed;
}

public String getUsersInformation() {
    usersName=scan.nextLine();
    return usersName;
}

//Method being used to calculate the speed of the users inputs and what fine they will receive.
public String calculateSpeed() {

    String calculate="";
    if (speedLimit==20 && usersSpeed>20 && usersSpeed<=24) {
        calculate="Just a warning. Please do not speed again!";
    }
    else if (speedLimit==20 && usersSpeed>24 && usersSpeed<30) {
        calculate=("Fine. £50 to pay!");
    }
    else if (speedLimit==20 && usersSpeed>=30 && usersSpeed<35) {
        calculate=("Fine. £100 to pay!");
    }
    else if (speedLimit==20 && usersSpeed>=35 && usersSpeed<40) {
        calculate=("3 points on your license and £150 fine to pay!");
    }
    else if (speedLimit==20 && usersSpeed>=40) {
        calculate=("Disqualifed and a £1000 fine to pay!");
    } 
    else if (speedLimit==20 && usersSpeed<=20) {
        calculate=("You are within the speed limit!");
    } //20mph IF statement

    if (speedLimit==30 && usersSpeed>30 && usersSpeed<=34) {
        calculate=("Just a warning. Please do not speed again!");
    }
    else if (speedLimit==30 && usersSpeed>34 && usersSpeed<40) {
        calculate=("Fine. £50 to pay!");
    }
    else if (speedLimit==30 && usersSpeed>=40 && usersSpeed<45) {
        calculate=("Fine. £100 to pay!");
    }
    else if (speedLimit==30 && usersSpeed>=45 && usersSpeed<50) {
        calculate=("3 points on your license and £150 fine to pay!");
    }
    else if (speedLimit==30 && usersSpeed>=50) {
        calculate=("Disqualifed and a £1000 fine to pay!");
    }
    else if (speedLimit==30 && usersSpeed<=30) {
        calculate=("You are within the speed limit!");
    } //30mph IF statement

    if (speedLimit==40 && usersSpeed>40 && usersSpeed<=44) {
        calculate=("Just a warning. Please do not speed again!");
    }
    else if (speedLimit==40 && usersSpeed>44 && usersSpeed<50) {
        calculate=("Fine. £50 to pay!");
    }
    else if (speedLimit==40 && usersSpeed>=50 && usersSpeed<55) {
        calculate=("Fine. £100 to pay!");
    }
    else if (speedLimit==40 && usersSpeed>=55 && usersSpeed<60) {
        calculate=("3 points on your license and £150 fine to pay!");
    }
    else if (speedLimit==40 && usersSpeed>=60) {
        calculate=("Disqualifed and a £1000 fine to pay!");
    }
    else if (speedLimit==40 && usersSpeed<=40) {
        calculate=("You are within the speed limit!");
    } //40mph IF statement

    if (speedLimit==50 && usersSpeed>50 && usersSpeed<=54) {
        calculate=("Just a warning. Please do not speed again!");
    }
    else if (speedLimit==50 && usersSpeed>54 && usersSpeed<60) {
        calculate=("Fine. £50 to pay!");
    }
    else if (speedLimit==50 && usersSpeed>=60 && usersSpeed<65) {
        calculate=("Fine. £100 to pay!");
    }
    else if (speedLimit==50 && usersSpeed>=65 && usersSpeed<70) {
        calculate=("3 points on your license and £150 fine to pay!");
    }
    else if (speedLimit==50 && usersSpeed>=70) {
        calculate=("Disqualifed and a £1000 fine to pay!");
    }
    else if (speedLimit==50 && usersSpeed<=50) {
        calculate=("You are within the speed limit!");
    } //50mph IF statement

    if (speedLimit==60 && usersSpeed>60 && usersSpeed<=64) {
        calculate=("Just a warning. Please do not speed again!");
    }
    else if (speedLimit==60 && usersSpeed>64 && usersSpeed<70) {
        calculate=("Fine. £50 to pay!");
    }
    else if (speedLimit==60 && usersSpeed>=70 && usersSpeed<75) {
        calculate=("Fine. £100 to pay!");
    }
    else if (speedLimit==60 && usersSpeed>=75 && usersSpeed<80) {
        calculate=("3 points on your license and £150 fine to pay!");
    }
    else if (speedLimit==60 && usersSpeed>=80) {
        calculate=("Disqualifed and a £1000 fine to pay!");
    }
    else if (speedLimit==60 && usersSpeed<=60) {
        calculate=("You are within the speed limit!");
    } //60mph IF statement

    if (speedLimit==70 && usersSpeed>70 && usersSpeed<=74) {
        calculate=("Just a warning. Please do not speed again!");
    }
    else if (speedLimit==70 && usersSpeed>74 && usersSpeed<80) {
        calculate=("Fine. £50 to pay!");
    }
    else if (speedLimit==70 && usersSpeed>=80 && usersSpeed<85) {
        calculate=("Fine. £100 to pay!");
    }
    else if (speedLimit==70 && usersSpeed>=85 && usersSpeed<90) {
        calculate=("3 points on your license and £150 fine to pay!");
    }
    else if (speedLimit==70 && usersSpeed>=90) {
        calculate=("Disqualifed and a £1000 fine to pay!");
    }
    else if (speedLimit==70 && usersSpeed<=70) {
        calculate=("You are within the speed limit!");
    } //70mph IF statement  

    if (speedLimit>70) {
        calculate=("Please enter a speed limit which is 70mph or under!");
    }
    System.out.println(calculate);
    return calculate;
}
}

请有人帮助我，因为我已经一次又一次地尝试使其工作，但事实并非如此。

Answer 1

您应该使用类似if (usersSpeed >= (!speedLimit + 20) && usersSpeed <= (!speedLimit + 40)等的内容进行所有选择。

将方法的值返回到JLabel

1 个答案: