Instead of writing many if..else
statements, you can use the switch
statement.
int day = 4; switch (day) { // every case will be a posibility of "day" 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; case 7: System.out.println("Sunday"); break; } // Outputs "Thursday" (day 4)
int day = 4; switch (day) { case 6: System.out.println("Today is Saturday"); break; case 7: System.out.println("Today is Sunday"); break; default: System.out.println("Looking forward to the Weekend"); } // Outputs "Looking forward to the Weekend"
Without “break”
int day = 6; switch (day) { case 6: System.out.println("Today is Saturday"); case 7: System.out.println("Today is Sunday"); default: System.out.println("Looking forward to the Weekend"); } // Outputs "Today is Saturday" "Today is Sunday" "Looking forward to the Weekend"
原文地址:http://www.cnblogs.com/ShengLiu/p/16920699.html
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