對數組值按首字母進行排序:
public class Test {
public static void main(String[] args) {
List<String> list = Arrays.asList("c","a","b");
Collections.sort(list, (a, z) -> a.compareTo(z));
System.out.println("第一個:"+list.get(0));
System.out.println("第二個:"+list.get(1));
System.out.println("第三個:"+list.get(2));
}
}
輸出結果:
第一個:a
第二個:b
第三個:c