循环删除List元素

List<String> list = new ArrayList<>(Arrays.asList("a1", "ab2", "a3", "ab4", "a5", "ab6", "a9", "ab8", "a9"));
         /**
         * 删除含有b的元素
         */
        for (Iterator<String> ite = list.iterator(); ite.hasNext();) {
            String str = ite.next();
            if (str.contains("b")) {
                ite.remove();
            }
        }
        for(String s:list)
        	System.out.println(s);
        /**
         * 删除a9元素
         */
        List<String> delList=new ArrayList<String>();
        delList.add("a9");
        list.removeAll(delList);
        
        for(String s:list)
        	System.out.println(s);