public?class?HelloWorld?{
????public?static?void?main(String[]?args)?{
		char?today='日';?
	if(today=='一'||today=='三'||today=='五'){???????
	????System.out.println("吃包子");?}???????else?if(today=='二'||toda=='四'||today=='六'){????????????
	????????System.out.println("吃油條");???????}???????
	????????else{
	????????????System.out.println("吃主席套餐);??
	????????????}?
????????
????}?
????
}//這是你的代碼可以

public?class?HelloWorld?{
????public?static?void?main(String[]?args)?{
		char?today='日';
		switch?(today)?{
		case?'一':
		case?'三':
		case?'五':
		????System.out.println("吃包子");
		????break;
		default:
		????System.out.println("吃主席套餐");????
		case?'二':
		case?'四':
		case?'六':
		????System.out.println("吃油條");
		????break;
		
		}
????}	
}
//輸出結(jié)果是套餐夾油條，說明default執(zhí)行完后會(huì)繼續(xù)執(zhí)行往下執(zhí)行