long j=456;

下面赋值不正确的语句是（）。

int i=10, j=18, k=30;

switch(j-i)

case 8:k++;

case 9 :k+=2;

case 10:k+=3;

default :k/=j;

char ch='8'; int r=10;

case'7':r=r+3;

case'8':r=r+5;

case '9': r=r+6; break

default: r=r+8;

int x=6, y=10, k=5;

switch(x%y)

case 0: k=x*y;

case 6: k=x/y;

case 12: k=x-y;

default:k=x*y-x;

int i=9;

char c='a';

char d=(char)(c+i);

System.out. println(d);

int x=3;

int y=4;

boolean b=true;

System.out. println("b is:"+(b==(y<x)));

__,b=__

int a = 5,b;

b=++a *3;