MockExamII
SCJP模拟试题二
此套试题由60道题组成(实际考试为60道题)。
Questions
Question 1)
Which of the following lines will compile without warning or error.
a) float f = 1.3;
b) char c = "a";
c) byte b = 257;
d) boolean b = null;
e) int i = 10;
answer
Question 2)
What will happen if you try to compile and run the following code
public class MyClass {
public static void main(String arguments[])
{
amethod(arguments);
}
public void amethod(String[] arguments)
{
System.out.println(arguments);
System.out.println(arguments[1]);
}
}
1) error Can‘t make static reference to void amethod.
2) error method main not correct
3) error array must include parameter
4) amethod must be declared with String
answer
Question 3)
Which of the following will compile without error
1) import java.awt.*;
package Mypackage;
class Myclass {}
2) package MyPackage;
import java.awt.*;
class MyClass{}
3) /*This is a comment */
package MyPackage;
import java.awt.*;
class MyClass{}
answer
Question 4)
A byte can be of what size
1) -128 to 127
2) (-2 power 8 )-1 to 2 power 8
3) -255 to 256
4) depends on the Java Virtual machine
answer
Question 5)
What will be printed out if this code is run with the following command line
java myprog good morning
public class myprog{
public static void main(String argv[])
{
System.out.println(argv[2])
}
}
1) myprog
2) good
3) morning
4) Exception raid: "java.lang.ArrayIndexOutOfBoundsException: 2"
answer
Question 6)
Which of the following are java rerved words
1) if
2) then
3) goto
4) while
5) ca
answer
Question 7)
Which of the following are legal identifiers
1) 2variable
2) variable2
3) _whatavariable
4) _3_
5) $anothervar
6) #myvar
answer
Question 8)
What will happen when you compile the following code
public class MyClass{
static int i;
public static void main(String argv[]){
System.out.println(i);
}
}
1) Error Variable i may not have been initialized
2) null
3) 1
4) 0
answer
Question 9)
What will happen if you try to compile and run the following code
public class Q {
public static void main(String argv[]){
int anar[]= new int[]{1,2,3};
System.out.println(anar[1]);
}
}
1) 1
2) Error anar is referenced before it is initialized
3) 2
4) Error size of array must be defined
answer
Question 10)
What will happen if you try to compile and run the following code
public class Q {
public static void main(String argv[]){
int anar[]= new int[5];
System.out.println(anar[0]);
}
}
1) Error: anar is referenced before it is initialized
2) null
3) 0
4) 5
answer
Question 11)
What will be the result of attempting to compile and run the following code
