Java：无限循环错误

Question

public static String checkStatus（String status）     {         while（（状态！=＆＃34; s＆＃34; ||状态！=＆＃34; S＆＃34; ||状态！=＆＃34; m＆＃34; ||状态！=

＆＃13;

＆＃13;

//this line is in the main program
marital = checkStatus(marital);

//this is a method that keep asking for s or m if user input is not s or m
public static String checkStatus(String status)
	{
		while(status != "s" || status != "S" || status != "m" || status != "M")
		{
			status = JOptionPane.showInputDialog(null, "Please enter M or S for marital status: ");

		}
		return status;
	}

＆＃13;

＆＃13;

＆＃13;

＆＃34; M＆＃34））         {             status = JOptionPane.showInputDialog（null，＆＃34;请输入M或S表示婚姻状况：＆＃34;）;

    }
    return status;
}

//我不断得到一个要求m或s的无限循环