Compilation fails.
1 restored 42
12 restored 42
121 restored 42
1212 restored 42
An exception is thrown at runtime.
第1题:
The word “leftovers” in Paragraph 1 probably means__________.
A. food remaining after a meal
B.things left undone
C.meals made of vegetables
D.pizza topped with fruit
第2题:
A.The class implements java.lang.Comparable.
B.The class implements java.util.Comparator.
C.The interface used to implement sorting allows this class to define only one sort sequence.
D.The interface used to implement sorting allows this class to define many different sort sequences.
第3题:
Eat some vegetables and fruit every day because they are (health) food.
第4题:
下列哪个选项的java源文件程序段是不正确的? ( )
A.package testpackage; public class Test{ }
B.import java.io.*; package testpackage; public class Test{ }
C.import java.i.*; class Person{} public class Test{ }
D.import java.io.*; import java.awt.*; public class Test { }
第5题:
下列( )选项的java源文件代码片段是不正确的。
A.package testpackage; publicClass Test{}
B.import java.io.*; package testpackage: publicClass Test{}
C.import java.io.*; Class Person{} publicClass Test{}
D.import java.io.*; import java.awt.*; publicClass Test{}
第6题:
AssumingthattheserializeBanana2()andthedeserializeBanana2()methodswillcorrectlyuseJavaserializationandgiven:
importjava.io.*;
classFood{Food(){System.out.print(”1”);}}
classFruitextendsFoodimplementsSerializable{
Fruit(){System.out.print(”2”);}}
publicclassBanana2extendsFruit{intsize=42;
publicstaticvoidmain(String[]args){
Banana2b=newBanana2();
b.serializeBanana2(b);//assumecorrectserialization
b=b.deserializeBanana2(b);//assumecorrect
System.out.println(”restored+b.size+);}
//moreBanana2methods
}
Whatistheresult?()
第7题:
下列哪个选项的java源文件代码片段是不正确的?
A.package testpackage; public class Test{ }
B.import java. io. *; package testpaekage; public class Test { }
C.import java.io.*; class Person { } public class Test { }
D.import java.io.*; import java. awt.*; public class Test{ }
第8题:
此题为判断题(对,错)。
第9题:
下列代码的输出结果是( )。
class parent
{
void printme()
{
System.out.println("parent");
}
}
class child extends parent
{
void printme()
{
System. out.println("child");
}
void printall()
{
super, printme();
this.printme();
printme();
}
}
public class test
{
public static void main(String args[])
{
child myc=new child();
myc.printall();
}
}
A.import java.awt.*;
B.import java.applet.applet;
C.import java.io.*;
D.import java, awt.graphics;
第10题: