優化2025年計算機二級JAVA考試復習策略試題及答案姓名：____________________

一、單項選擇題（每題2分，共10題）

1.下列關于Java編程語言的特點，錯誤的是：

A.簡單易學

B.面向對象

C.靜態類型

D.基于指針

2.在Java中，以下哪個關鍵字表示繼承？

A.extends

B.implements

C.import

D.super

3.以下哪個方法可以用來判斷一個字符串是否為空？

A.isEmpty()

B.isNull()

C.isBlank()

D.isEmptyOrWhitespace()

4.在Java中，以下哪個關鍵字用于定義接口？

A.interface

B.class

C.abstract

D.enum

5.以下哪個方法用于將字符串轉換為整數？

A.parseInt(Strings)

B.toInteger(Strings)

C.intvalueOf(Strings)

D.intValue(Strings)

6.在Java中，以下哪個關鍵字用于定義一個常量？

A.const

B.final

C.static

D.volatile

7.以下哪個關鍵字用于定義一個方法？

A.method

B.func

C.def

D.void

8.在Java中，以下哪個關鍵字用于定義一個數組？

A.array

B.list

C.map

D.vector

9.以下哪個關鍵字用于定義一個多態？

A.polymorphism

B.override

C.extends

D.implements

10.在Java中，以下哪個關鍵字用于定義一個集合？

A.set

B.list

C.map

D.array

二、填空題（每題2分，共5題）

1.Java中，類的定義格式為：________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________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二、多項選擇題（每題3分，共10題）

1.下列關于Java數據類型的說法，正確的是：

A.整數類型有byte、short、int、long

B.浮點類型有float、double

C.布爾類型是boolean

D.字符類型是char

E.引用類型包括類、接口、數組