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【20171002】Java每日一練

package c2; import java.util.Scanner; public class C2_03 { public static void main(String[] args) { // TODO Auto-generated method stub int month; int mmonth; int year; int date; int day; long total = 0; System.out.println("請輸入年份:"); Scanner sc3 = new
Scanner(System.in); year = sc3.nextInt(); System.out.println("請輸入月份:"); Scanner sc = new Scanner(System.in); month = sc.nextInt(); System.out.println("請輸入日期:"); Scanner sc2 = new Scanner(System.in); date = sc2.nextInt(); for(int j = 1900
; j <= year ; j++) { if(((j % 100 != 0) && (j % 4 == 0)) || (j % 400) == 0){ total+=1; } } total = total +(year - 1900) * 365 + date; for(mmonth = month -1;mmonth >=1;mmonth --){ if(mmonth == 1) { total += 31
;continue; } if(mmonth <= 2){ if(((year % 100 != 0) && (year % 4 == 0)) || (year % 400) == 0){ total +=29;continue; } else{ total += 28;continue; } } if(mmonth <= 3) { total += 31;continue; } if(mmonth <= 4) { total += 30;continue; } if(mmonth <= 5) { total += 31;continue; } if(mmonth <= 6) { total += 30;continue; } if(mmonth <= 7) { total += 31;continue; } if(mmonth <= 8) { total += 31;continue; } if(mmonth <= 9) { total += 30;continue; } if(mmonth <= 10) { total += 31;continue; } if(mmonth <= 11 ) { total += 30;continue; } } System.out.println("這一天是第" + total + "天"); day = (int)(total % 7); //System.out.println("今天是星期" + day); switch(day) { case 1: System.out.println("這一天是星期1。"); break; case 2: System.out.println("這一天是星期2。"); break; case 3: System.out.println("這一天是星期3。"); break; case 4: System.out.println("這一天是星期4。"); break; case 5: System.out.println("這一天是星期5。"); break; case 6: System.out.println("這一天是星期6。"); break; default: System.out.println("這一天是星期7。"); } } }