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【简答题】
编写下面程序写出运行结果,体会Java虚拟机进行垃圾回收的过程: class Person { // 下面定义的finalize()方法会在垃圾回收前被调用 public void finalize() { System. out .println( "对象将被作为垃圾回收..." ); } } public class Ex37Recycle { // 1、演示一个不通知强制垃圾回收的方法 public static void recyclegWaste1(){ Person p1 = new Person(); p1 = null ; int i = 1; while ( i < 10) { System. out .println( "方法1循环中..........." ); i ++; } } // 2、演示一个通知强制垃圾回收的方法 public static void recyclegWaste2(){ Person p2 = new Person(); p2 = null ; // 通知垃圾回收器进行强制垃圾回收 System.gc(); // Runtime.getRuntime(). gc (); int i = 1; while ( i < 10) { System. out .println( "方法2循环中..........." ); i ++; } } public static void main(String[] args ) { // 分别调用两个模拟演示垃圾回收的方法 recyclegWaste1(); System. out .println( "================" ); recyclegWaste2(); } }
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参考答案:
举一反三
【单选题】Tom and I are _____ seeing you, so don’t disappoint us!
A.
looking for
B.
looking forward to
C.
looking to
D.
looking after
【简答题】如图所示杆件,若为平衡状态,则其受力应满足何条件?(答案格式请注意,力按照从左往右处理,先力后力偶,不使用乘号,即pcosθ,不用p×cosθ,用系统自带的公式编辑器。) 1, ___________________ 2, ___________________ 3, ___________________
【判断题】3 A word is the combination of word-form and its meaning, and the former refers to its spelling and the latter refers to what the form stands for.
A.
正确
B.
错误
【单选题】Which of the following refers to a system which not only captures spoken words but also distinguishes word groupings to form sentences?
A.
Automatic speech recognition
B.
Haptic interface
C.
Biometrics
D.
CAVE
【单选题】Grammar Which word is this the definition of: a verb form that refers to a possible or imagined situation
A.
Conditionals
B.
Complex sentences
【简答题】The word "democratization" refers to a ______ while the word "democracy" refers to a ______. The verb form of this two words is _______.
【判断题】Weak form refers to pronouce a word very quickly and lightly.
A.
正确
B.
错误
【简答题】____ means what a linguistic form refers to in the real, physical word; it deals with the relationship between the linguistic element and the non-linguistic world of experience.
【判断题】The word “data” only refers to information in the form of numbers.
A.
正确
B.
错误
【单选题】_______refers to a single word form. that has several different meanings which are not closely related. A. superordinate A.synonym
B.
polysemy
C.
homonymy
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