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表达式’apple.peach,banana,pear’.find(’ppp’)的值为()。
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Assuming that the serializeBanana() and the deserializeBanana() methods will correctly use Java serialization and given: import java.io.*; class Food implemertts Serializable {int good = 3;} class Fruit externds Food {int juice = 5;} public class Banana extends Fruit { int yellow = 4; public static void main(String [] args) { Banana b = new Banana(); Banana b2 = new Banana(); b.serializeBanana(b); // assume correct serialization b2 = b.deserializeBanana(); // assume correct System.out.println(”restore “+b2.yellow+ b2.juice+b2.good); } // more Banana methods go here } What is the result?() A、 restore 400B、 restore 403C、 restore 453D、 Compilation fails.E、 An exception is thrown at runtime.
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单选题Assuming that the serializeBanana() and the deserializeBanana() methods will correctly use Java serialization and given: import java.io.*; class Food implemertts Serializable {int good = 3;} class Fruit externds Food {int juice = 5;} public class Banana extends Fruit { int yellow = 4; public static void main(String [] args) { Banana b = new Banana(); Banana b2 = new Banana(); b.serializeBanana(b); // assume correct serialization b2 = b.deserializeBanana(); // assume correct System.out.println(”restore “+b2.yellow+ b2.juice+b2.good); } // more Banana methods go here } What is the result?()A
restore 400B
restore 403C
restore 453D
Compilation fails.E
An exception is thrown at runtime.
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单选题要建立文件流并打开当前目录下的文件file.dat用于输入,下列语句中错误的是( )。A
ifstream fin=ifstream.open(“file.dat”);B
ifstream* fin=new ifstream(“file.dat”);C
ifstream fin; fin.open(“file.dat”);D
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单选题Which parameters are valid SCREEN options for combating operating system probes?()A
syn-fin, syn-flood, and tcp-no-fragB
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syn-fin, syn-ack-ack-proxy, and tcp-no-frag
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单选题Given that the elements of a PriorityQueue are ordered according to natural ordering,and: What is the result?()A
apple pearB
banana pearC
apple appleD
apple bananaE
banana banana
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