java语言程序设计基础篇第十版课后习题答案.zip

package com.company; import java.util.Scanner; class Quiz_5_28 { void showMonday(){ int initialDay = 0; int monthDays = 0; int resultDay; String[] month = { "Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sep", "Oct", "Nov", "Dec" }; Scanner input = new Scanner(System.in); System.out.print("Enter the year: "); int year = input.nextInt(); System.out.print("Enter the day of 1st Jan: "); String weekday = input.next(); switch (weekday){ case "Sun": initialDay = 0; break; case "Mon": initialDay = 1; break; case "Tues": initialDay = 2; break; case "Wed": initialDay = 3; break; case "Thur": initialDay = 4; break; case "Fir": initialDay = 5; break; case "Sta": initialDay = 6; } for (int i = 0; i <= 11; i++){ switch (month[i]){ case "Jan": monthDays = 0; break; case "Feb": monthDays = 31; break; case "Mar": monthDays = 31 + 28; break; case "Apr": monthDays = 31 + 28 + 31; break; case "May": monthDays = 31 + 28 + 31 + 30; break; case "June": monthDays = 31 + 28 + 31 + 30 + 31; break; case "July": monthDays = 31 + 28 + 31 + 30 + 31 + 30; break; case "Aug": monthDays = 31 + 28 + 31 + 30 + 31 + 30 + 31; break; case "Spe": monthDays = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31; break; case "Oco": monthDays = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30; break; case "Dec": monthDays = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31; break; case "Nve": monthDays = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30; } if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0){ if (i == 0){ resultDay = (initialDay + monthDays) % 7; }else{ resultDay = (initialDay + monthDays + 1) % 7; } }else { resultDay = (initialDay + monthDays) % 7; } switch (resultDay){ case 0: weekday = "Sun"; break; case 1: weekday = "Mon"; break; case 2: weekday = "Tues"; break; case 3: weekday = "Wen"; break; case 4: weekday = "Thur"; break; case 5: weekday = "Fri"; break; case 6: weekday = "Sta"; } System.out.printf("%s 1, %d is %s\n", month[i], year, weekday); } } void showMonday2(){ java.util.Scanner input = new java.util.Scanner(System.in); // Prompt the user to enter input System.out.print("Enter a year: "); int year = input.nextInt(); System.out.print("Enter the first day of the year: "); int firstDay = input.nextInt(); int numberOfDaysInMonth = 0; // Display calendar for each month for (int month = 1; month <= 12; month++) { // Display Calendar title switch (month) { case 1: System.out.print("January 1, " + year + " is "); numberOfDaysInMonth = 31; break; case 2: System.out.print("February 1, " + year + " is "); if (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)) numberOfDaysInMonth = 29; else numberOfDaysInMonth = 28; break; case 3: System.out.print("March 1, " + year + " is "); numberOfDaysInMonth = 31; break; case 4: System.out.print("April 1, " + year + " is "); numberOfDaysInMonth = 30; break; case 5: System.out.print("May 1, " + year + " is "); numberOfDaysInMonth = 31; break; case 6: System.out.print("June 1, " + year + " is "); numberOfDaysInMonth = 30; break; case 7: System.out.print("July 1, " + year + " is "); numberOfDaysInMonth = 31; break; case 8: System.out.print("August 1, " + year + " is "); numberOfDaysInMonth = 31; break; case 9: System.out.print("September 1, " + year + " is "); numberOfDaysInMonth = 30; break; case 10: System.out.print("October 1, " + year + " is "); numberOfDaysInMonth = 31; break; case 11: System.out.print("November 1, " + year + " is "); numberOfDaysInMonth = 30; break; case 12: System.out.print("December 1, " + year + " is "); numberOfDaysInMonth = 31; break; } switch (firstDay) { case 0: System.out.println("Sunday"); break; case 1: System.out.println("Monday"); break; case 2: System.out.println("Tuesday"); break; case 3: System.out.println("Wednesday"); break; case 4: System.out.println("Thursday"); break; case 5: System.out.println("Friday"); break; case 6: System.out.println("Saturday"); break; } // Get the start day for the next month firstDay = (firstDay + numberOfDaysInMonth) % 7; } } }