Java易错点

1 public class ByteTest
2 {
3   public static void main(String[] args)
4   {
5     byte a=4;
6     a=a+3;
7     System.out.println(a);
8   }    
9 }

 1 package firstproject;
 2 public class Test 
 3 {
 4     public static void main(String[] args)
 5     {
 6         // TODO Auto-generated method stub
 7         char a=‘\‘‘;
 8         char b=‘你‘;
 9         System.out.println(a);
10         System.out.println(b);
11     }
12 }