单项选择题
class super (
public int I = 0;
public super (string text) (
I = 1
)
)
public class sub extends super (
public sub (string text) (
i= 2
)
public static void main (straing args[]) (
sub sub = new sub (“Hello”);
system.out. PrintIn(sub.i);
)
)
What is the result?()
A. Compilation will fail.
B. Compilation will succeed and the program will print “0”
C. Compilation will succeed and the program will print “1”
D. Compilation will succeed and the program will print “2”
相关考题
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单项选择题
byte [] arry1, array2[]; byte array3 [][]; byte[][] array4; If each array has been initialized, which statement will cause a compiler error?()
A. Array2 = array1;
B. Array2 = array3;
C. Array2 = array4;
D. Both A and B
E. Both A and C
F. Both B and C -
单项选择题
Whichdeclarationpreventscreatingasubclassofanouterclass?()
A. Static class FooBar{}
B. Private class FooBar{}
C. Abstract public class FooBar{}
D. Final public class FooBar{}
E. Final abstract class FooBar{} -
单项选择题
1. class super { 2. public float getNum() {return 3.0f;} 3. } 4. 5. public class Sub extends Super { 6. 7. } Which method, placed at line 6, will cause a compiler error?()
A. Public float getNum() {return 4.0f; }
B. Public void getNum () { }
C. Public void getNum (double d) { }
D. Public double getNum (float d) {retrun 4.0f; }
