例外が発生した場所をマークしましたが、なぜそれが起こっているのかわかりません。このコードは、ユーザーが入力した名前の人気と意味を調べます。グラフも作成します (ただし、機能しません) ファイルは長すぎてここに置くことはできませんが、オンラインの例は次のとおりです。 , means.txt: BRITTANY f 英語 フランス語でブルターニュと呼ばれる、フランス北西部の地域の名前から。 (意味) 1. なぜこの例外が発生するのですか? 2. 例外を修正するにはどうすればよいですか? 3. グラフがバーを描画しないのはなぜですか (メソッド changingGraph で)
コンソール出力の例:
Name: aaron
Aaron f 0 0 0 0 0 0 0 0 0 883 0 0 0
AARON m English, Biblical From the Hebrew name ??????? ('Aharon) which is most likely of unknown Egyptian origin.
例外：
Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Scanner.java:864)
at java.util.Scanner.next(Scanner.java:1485)
at java.util.Scanner.nextInt(Scanner.java:2117)
at java.util.Scanner.nextInt(Scanner.java:2076)
at BabyNames.changingGraph(BabyNames.java:131)
at BabyNames.main(BabyNames.java:32)
私のコード:
import java.util.*;
import java.io.*;
import java.awt.*;
public class BabyNames{
public static final int STARTINGYEAR = 1890;
public static final int WIDTH = 60;
public static final int HEIGHT = 30;
private static String nameFinal;
private static String originalName;
public static int HEIGHTOFPANEL = 500 + (HEIGHT * 2);
public static void main(String[] args) throws FileNotFoundException{
Scanner console = new Scanner(System.in);
DrawingPanel panel = new DrawingPanel(780,HEIGHTOFPANEL);//DOES PANEL SIZE CHANGE????!?!?!?!??!?!?!?
Graphics g = panel.getGraphics(); //does there always need to be 500 free in the middle???
Scanner nameFile = new Scanner(new File("names.txt"));
Scanner meaningsFile = new Scanner(new File("meanings.txt"));
Scanner nameFile2 = new Scanner(new File("names2.txt"));
intro();
fixedGraph(g);
String nameFinal;
nameFinal = nameToLowerCase(console, originalName);//changes to correct capitalization
String meanings = "";
String popularity = "";
if(STARTINGYEAR == 1890){
popularity = findingStatistics(console,nameFile, nameFinal);
}
else{
popularity = findingStatistics(console, nameFile2, nameFinal);
}
meanings = findingStatistics(console, meaningsFile, nameFinal);
changingGraph(meanings,g,popularity); //EXCEPTION HERE
}
//prints introduction to what the program does
public static void intro(){
System.out.println("This program allows you to search through the");
System.out.println("data from the Social Security Administration");
System.out.println("to see how popular a particular name has been");
System.out.println("since" + STARTINGYEAR );
System.out.println();
System.out.print("Name: ");
}
//Converts what the user types in so the first letter is
//capitalized and the rest is lower case
public static String nameToLowerCase(Scanner console, String originalName){
originalName = console.next();
String name = "" ;
int lengthOfName = originalName.length();
String beginingOfName = originalName.substring(0,1).toUpperCase();
String endOfName = originalName.substring(1,lengthOfName).toLowerCase();
name = beginingOfName + endOfName;
return name;
}
public static String findingStatistics(Scanner console, Scanner data, String nameFinal){
boolean goesThroughOnce = false; //
String statistics = "";
String currWord = "";
String currLine = "";
while (data.hasNext() && goesThroughOnce == false){
currLine = data.nextLine();
Scanner lineBeingRead = new Scanner(currLine); //make other scanners?? for each file
currWord = lineBeingRead.next(); //
if (currWord.equals(nameFinal) || currWord.equals(nameFinal.toUpperCase())){ //
statistics = currLine;
goesThroughOnce = true;
System.out.println(statistics);
}
else{
}
}
if(goesThroughOnce == false){
System.out.print(originalName + " not found"); //ASK ABOUT THE EXCEPTION
}
return statistics;
}
public static void fixedGraph(Graphics g){ //Draws fixed things such as gray blocks and black lines
g.setColor(Color.LIGHT_GRAY);
g.fillRect(0,0,780,HEIGHT);
g.fillRect(0,HEIGHTOFPANEL-HEIGHT,780,HEIGHT);
g.setColor(Color.BLACK);
g.drawLine(0,HEIGHT,780,HEIGHT);
g.drawLine(0,HEIGHTOFPANEL-HEIGHT,780,HEIGHTOFPANEL-HEIGHT);
}
public static void changingGraph(String meanings, Graphics g, String popularity){
g.drawString("" + meanings,0,16); //draws meaning text
int startingYear = STARTINGYEAR;
int amountOfDecades = 0;
if(startingYear == 1890){
amountOfDecades = 13;
}
else{
amountOfDecades = 8;
}
// g.drawString("" + startingYear,0,552); //fencepost
for(int i=0; i<=amountOfDecades;i++){
int year = startingYear + (10 * i);
g.drawString("" + year,(WIDTH*i),HEIGHTOFPANEL-8); //draws decade numbers
}
Scanner popularityData = new Scanner(popularity);
Scanner meaningsData = new Scanner(meanings);
String currChar = popularityData.next();
boolean gender = false; //if it is a boys name
boolean stop = false;
while(meaningsData.hasNext() && stop == false){//determines which color the bars will be
if(currChar.equals("f")){
gender = true;
}
if(gender == true){
g.setColor(Color.PINK);
stop = true;
}
else{
currChar = meaningsData.next();
}
}
if(stop ==false){
g.setColor(Color.BLUE);
}
int ranking;
while(popularityData.hasNext() && stop == false){ //EXCEPTION HERE
ranking = popularityData.nextInt();
for(int i=0; i<=amountOfDecades;i++){
g.fillRect(WIDTH*i,(ranking/2)+30,WIDTH/2,(560-HEIGHT*2)-((ranking/2)+30) );
g.drawString("" + ranking, WIDTH*i, (ranking/2)+30);
}
}
}
}