写出以下伪代码的可运行Java代码s=s0; c=nextChar(); while(c!=eof){ s = δ(s, c); c = nextChar(); } if(s∈F ) return “yes”; else return “no”;

下面是将伪代码转化为Java代码的例子：

// 定义状态集合F
Set<String> F = new HashSet<>();
F.add("abc");
F.add("def");

// 定义状态转移函数δ
Map<String, Map<Character, String>> transitionFunction = new HashMap<>();
Map<Character, String> map1 = new HashMap<>();
map1.put('a', "ab");
map1.put('b', "abc");
transitionFunction.put("a", map1);
Map<Character, String> map2 = new HashMap<>();
map2.put('d', "de");
map2.put('e', "def");
transitionFunction.put("d", map2);

// 定义nextChar函数和初始状态s0
char nextChar() {
    return ...; // 获取下一个字符的逻辑
}
String s0 = "a";

// 定义状态转移函数delta
String delta(String s, char c) {
    Map<Character, String> map = transitionFunction.get(s);
    if (map == null) {
        return null;
    }
    return map.get(c);
}

// 执行状态转移
String s = s0;
char c = nextChar();
while (c != eof) {
    s = delta(s, c);
    c = nextChar();
}

// 判断是否在终止状态集合F中
if (s != null && F.contains(s)) {
    System.out.println("yes");
} else {
    System.out.println("no");
}