switchdemo2.java

我自己学习JAVA过程中用键盘敲的代码

package jerryhfb;

public class SwitchDemo2 {

public static void main(String[] args) {

int month = 2;

int year = 2000;

int numDays = 0;

switch (month) {

case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

numDays = 31;

break;

case 4:

case 6:

case 9:

case 11:

numDays = 30;

break;

case 2:

if ( ((year % 4 == 0) && !(year % 100 == 0))

|| (year % 400 == 0) )

numDays = 29;

else

numDays = 28;

break;

}

System.out.println("Number of Days = " + numDays);

}

}