class bl2
{
            public static void main(String [] args)
            {
                        int x=12;
                        {
                            if(x<3)
                                        System.out.println("x<3");
                                        System.out.println("ok");
                            else if(x>=3 && x<8)
                                        System.out.println("x>=3 && x<8");
                        }
              int y;            
                        /*if(x>0)
                                        y=x;
                        else
                                        y=-x;*/
                        y=x>0?x:-x;
                    
                        if(x==1);
                                    {
                                    if(y==1)
                                    {
                                                System.out.println("x==1,y==1");
                                    }
                                    else
                                    {
                                                System.out.println("x==1,y!=1");
                                  }
                                  }
                      else if(x>3)    
                                  {
                                  if(y==1)
                                    {
                                                System.out.println("x!=1,y==1");
                                    }
                                    else
                                    {
                                                System.out.println("x!=1,y!=1");
                                    }
                                    }
                        
                        x=1;
                        switch(x)
                        {
                                        case 1:
                                                        System.out.println("switch1");
                                        case 2:
                                                        System.out.println("seitch2");
                                        default:
                                                        System.out.println("other");
                        }              
            }
}

[[it] 本帖最后由 wenxx10 于 2008-8-18 13:45 编辑 [/it]]

来人啊

不知道是你敲错了，还是视频就这样的。。。。
自己学着看错误提示来修改。。。

class bl2
{
            public static void main(String [] args)
            {
                        int x=12;
                        {
                            if(x<3){
                                        System.out.println("x<3");
                                        System.out.println("ok");
                            }
                            else if(x>=3 && x<8)
                                        System.out.println("x>=3 && x<8");
                        }
              int y;            
                        /*if(x>0)
                                        y=x;
                        else
                                        y=-x;*/
                        y=x>0?x:-x;
                    
                        if(x==1)
                                    {
                                    if(y==1)
                                    {
                                                System.out.println("x==1,y==1");
                                    }
                                    else
                                    {
                                                System.out.println("x==1,y!=1");
                                  }
                                  }
                      else if(x>3)   
                                  {
                                  if(y==1)
                                    {
                                                System.out.println("x!=1,y==1");
                                    }
                                    else
                                    {
                                                System.out.println("x!=1,y!=1");
                                    }
                                    }
                        
                        x=1;
                        switch(x)
                        {
                                        case 1:
                                                        System.out.println("switch1");
                                        case 2:
                                                        System.out.println("seitch2");
                                        default:
                                                        System.out.println("other");
                        }              
            }
}

多谢了！