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私は現在の日付と誕生日を入力したプロジェクトに取り組んでいます。コード全体では、日付の印刷と日付の計算が行われます。現在の日付は2016年11月14日に表示されますが、2016年10月14日が表示され、どこが間違っているかわかりません。ちょうどあなたがしたいようcMonthローカル変数の初期化を取り除くライン私の結果の1つが台無しになりました
System.out.println("Please enter the current month as a numeric value");
String Month = delta.readLine();
int cMonth = Integer.parseInt(Month);
月数値を読み込むときは、新しいcMonth変数を初期化している
public class BroDoYouEvenAge {
// add in try-catch statements x
// only numeric values x
// leap year
// loop if invalid
// loop if day is invalid
// less than 1 or greater than max day x
// add in no spaces or letters x
// VALIDATION FOR MONTHS x
// loop if invalid
// same year x
// try again x
// loop if invalid
static int cDay;
static int cMonth;
static int bYear;
static int bMonth;
static int bDay;
public static void run() {
prompt();
retry();
}
public static void prompt() {
BufferedReader delta = new BufferedReader(new InputStreamReader(System.in));
try {
System.out.println("Please enter the current year");
String Year = delta.readLine();
int cYear = Integer.parseInt(Year);
// prompts the user for the current month as a numeric value
boolean validmonth = false;
while(!validmonth){
System.out.println("Please enter the current month as a numeric value");
String Month = delta.readLine();
int cMonth = Integer.parseInt(Month);
if (cMonth < 1 || cMonth > 12) {
System.out.println("Your input was invalid");
}else{
validmonth = true;
}
}
// prompts the user for the current day as a numeric value
boolean validday = false;
while (!validday) {
System.out.println("Please enter the current day as a numeric value");
String Day = delta.readLine();
cDay = Integer.parseInt(Day);
if (cDay < 1) {
System.out.println("Your input was invalid");
}else if (cDay > 31) {
System.out.println("Your input was invalid");
}else if (cMonth == 4 && cDay > 30) {
System.out.println("Your answer is invalid");
}else if (cMonth == 6 && cDay > 30) {
System.out.println("Your answer is invalid");
}else if (cMonth == 9 && cDay > 30) {
System.out.println("Your answer is invalid");
}else if (cMonth == 11 && cDay > 30) {
System.out.println("Your answer is invalid");
}else{
validday = true;
}
}
// prompts the user for their birth year
boolean validYear = false;
while(!validYear){
System.out.println("Please enter your birth year");
String Year2 = delta.readLine();
bYear = Integer.parseInt(Year2);
if (bYear > cYear) {
System.out.println("Your answer was invalid");
}else{
validYear = true;
}
}
// does not allow user to input a value greater than their current
// year
// loops if invalid
// prompts the user for their birth month
boolean _validmonth = false;
while(!_validmonth){
System.out.println("Please enter your birth month as a numeric value");
String Month2 = delta.readLine();
bMonth = Integer.parseInt(Month2);
if(bMonth < 1 || bMonth> 12){
System.out.println("Your answer was invalid");
}else{
_validmonth = true;
}
}
// prompts the user for their birth day
boolean _validday = false;
while(!_validday){
System.out.println("Please enter the day you were born as a numeric value");
String Day2 = delta.readLine();
bDay = Integer.parseInt(Day2);
// prints out collected data
if (bMonth == 4 && bDay > 30) {
System.out.println("Your answer is invalid");
}else if (bMonth == 6 && bDay > 30) {
System.out.println("Your answer is invalid");
}else if (bMonth == 9 && bDay > 30) {
System.out.println("Your answer is invalid");
}else if (bMonth == 11 && bDay > 30) {
System.out.println("Your answer is invalid");
}else{
_validday= true;
}
}
System.out.println("The current date is " + cMonth + "/" + cDay + "/" + cYear);
System.out.println("Your birthday is " + bMonth + "/" + bDay + "/" + bYear);
// calculates and prints age
if (cMonth > bMonth) {
int age = cYear - bYear;
System.out.println("You are " + age + " years old ");
} else if (cMonth < bMonth) {
int age = (cYear - bYear);
System.out.println("You are " + age + " years old ");
} else if (cMonth == bMonth && cDay > bDay) {
int age = cYear - bYear;
System.out.println("You are " + age + " years old.");
} else if (cMonth == bMonth && cDay < bDay) {
int age = (cYear - bYear) - 1;
System.out.println("You are " + age + " years old. ");
} else if (cYear == bYear) {
System.out.println("You are not even a year old.");
} else {
System.out.println("Your input was invalid");
}
} catch (IOException IOE) {
} catch (NumberFormatException NFE) {
System.out.println("Please enter a numeric value without spaces, letters, or special characters");
}
}
public static void retry() {
BufferedReader delta = new BufferedReader(new InputStreamReader(System.in));
try {
boolean valid = false;
while (!valid) {
System.out.println("Would you like to try again? 1) Yes or 2) No");
System.out.println("Please enter a number");
String retry = delta.readLine();
int trynum = Integer.parseInt(retry);
if (trynum < 1 || trynum > 2) {
System.out.println("Your input was invalid. Please enter 1 or 2.");
continue;
} else if (trynum == 1) {
prompt();
} else if (trynum == 2) {
System.out.println("Okay then.");
System.exit(0);
} else {
System.out.println("Invalid");
continue;
}
}
} catch (IOException IOE) {
} catch (NumberFormatException NFE) {
System.out.println("Please enter a number");
}
}
}
ないが、しかし、あなたは、あなたがチェックしていることを確認している 'cDay'正しくすべての月のために？ –