方法一：

1 package qqq; 2  3 public class Jiou { 4  5     public static void main(String[] args) { 6         // TODO Auto-generated method stub 7         int x=233; 8         switch(x%2)//取x除以2的余数 9         {10         case 0://余数为0则x为偶数11             System.out.println("x是偶数");12         break;13         default://否则为奇数14             System.out.println("x是奇数");15         }//switch分支判断语句16     }17 }

 

方法二:

1 package qqq; 2  3 public class Jiou { 4  5     public static void main(String[] args) { 6         // TODO Auto-generated method stub     7         int x=45; 8         System.out.println(x%2==0?"偶数":"奇数"); 9     }10 }

方法三：

1 package qqq; 2  3 public class Jiou { 4  5     public static void main(String[] args) { 6         // TODO Auto-generated method stub     7         int x=2; 8         if(x%2==0) 9         {10             System.out.println("x是偶数");11         }12         else13         {14             System.out.println("x是奇数");15         }16     }17 }