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This is one of the tough Java interview question and its open for all, my friend didn't knowthe answer so he didn't mind telling me. my take is that stored procedure should return error code if some operation fails but if stored procedure itself fail than catching SQLException is only ch...
Answer: One of the good question to check the candidate's object-oriented programming skills. There are several differences between Composition and Inheritance in Java, some of them are following: 1. The Composition is more flexible because you can change the implementation at runtime by calling ...
select * from user where name=xx and city=xx ; //可以命中索引 select * from user where name=xx ; // 可以命中索引 select * from user where city=xx ; // 无法命中索引 候选人:这里需要注意的是,查询的时候如果两个条件都用上了,但是顺序不同,如 city= xx and name =xx,那么现在的查询引擎...
2. What is Java Virtual Machine and is it platform-independent? Answer: Java Virtual Machine is the heart and soul of the Java programming language. JVM is a virtual machine that acts as a real runtime engine that invokes the main method present in the java program. It is responsible for...
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Garbage collection automatic process and can't be forced. 12What is OOPS? OOP is the common abbreviation for Object-Oriented Programming. 13Describe the principles of OOPS. There are three main principals of oops which are called Polymorphism, Inheritance and Encapsulation. ...
private String correctAnswer;:代表正确答案。 public Question():构造函数,用于初始化题目。 public String getQuestionText():获取题目文本。 public boolean checkAnswer(String answer):检查给定答案是否正确。 2. 通过实现继承创建子类 接下来,我们将创建两个子类MultipleChoiceQuestion和TrueFalseQuestion,分别表示多选...
Java_Programming_Final_Exam_Question_08W_PaperA Java_Programming_Final_Exam_Question_08W_PaperA 《J a v a程序设计》期末试题试卷(A)(考试形式：闭卷考试时间: 1.5⼩时)Total 8 pages 《中⼭⼤学授予学⼠学位⼯作细则》第六条 考试作弊不授予学⼠学位 班级：___ 姓名： ___学号：___注...
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