第三步:找到不一样的球 第三次称重:根据上一步的结果,可以从两个候选球中选择一个进行称重。比如: 假如上一步得知A和B中有一个球不一样,再称重一次A和B,这样可以确定出哪个是不同的球。 因此,通过这三个称重的步骤,最多只需要3 次称重就可以找出7个球中那个不一样的球。 对了,最新的互联网大厂后端面经都会在公众号首发,别忘记关注哦!!如果你想加入百...
public class CheckIntChar { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter input value : "); String str = sc.next(); System.out.println(checkData(str)); } public static String checkData(String str) { String s1 = ""; Strin...
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Crack your next tech interview with these top Java coding interview questions. Covers core Java, OOP, data structures, and real coding examples
Java Interview Questions Part 7 What are the functions of the JDBC Connection interface? TheConnection interfacemaintains a session with the database. It can be used for transaction management. It provides factory methods that return the instance of Statement, PreparedStatement, CallableStatement, and ...
Stream(5.0 版新增):消息队列,相比于基于 List 类型实现的消息队列,有这两个特有的特性:自动生成全局唯一消息ID,支持以消费组形式消费数据。# 热key 是什么?怎么解决?Redis热key是指被频繁访问的key,可能会导致单个key的访问量过大,影响系统性能。解决方法包括:开启...
Before coding the solution, interview candidates are expected to ask some follow-up questions. In particular:Should a run be encoded even if it makes the resulting string longer? Should a run be encoded even if it doesn’t make the resulting string shorter? (This can be answered from the ...
public class ArrayList<E> extends AbstractList<E> implements List<E>, RandomAccess, Cloneable, java.io.Serializable { /** * 列表元素集合数组如果新建ArrayList对象时没有指定大小,那么会将 * EMPTY_ELEMENTDATA赋值给elementData, * 并在第一次添加元素时,将列表容量设置为DEFAULT_CAPACITY */ transient ...
Java Collections Interview Questions and AnswersWhat are Collection related features in Java 8? Java 8 has brought major changes in the Collection API. Some of the changes are: Java Stream API for collection classes for supporting sequential as well as parallel processing Iterable interface is ...
Here are some Java OOPs Interview Questions to crack coding interviews. Functions and Methods OOPs Interview Questions on Java Go through these Object-Oriented Programming interview questions on Functions and Methods to nail your tech interview on Java OOPs concepts. What is constructor overloading in...