Compilation succeeds and d takes the value 253.
Line 5 contains an error that prevents compilation.
Line 5 throws an exception indicating “Out of range”
Line 3 and 4 contain error that prevent compilation.
The compilation succeeds and d takes the value of 1.
第1题:
下列语句输出结果为( )。 public class test { public static void main(String args[]) { byte b=011; System.out.prinfin(b); } }
A.B
B.11
C.9
D.011
第2题:
class A { public String toString () { return “4”; } } class B extends A { 8. public String toString () { return super.toString() + “3”; } } public class Test { public static void main(Stringargs) { System.out.printIn(new B()); } } What is the result?()
第3题:
1. public class Test { 2. public static void main (String args) { 3. unsigned byte b = 0; 4. b--; 5. 6. } 7. } What is the value of b at line 5?()
第4题:
class A { public byte getNumber () { return 1; } } class B extends A { public short getNumber() { return 2; } public static void main (String args) { B b = new B (); System.out.printIn(b.getNumber()) } } What is the result?()
第5题:
1. class A { 2. public String toString () { 3. return “4”; 4. } 5. } 6. class B extends A { 7. public String toString () { 8. return super.toString() + “3”; 9. } 10. } 11. public class Test { 12. public static void main(String[]args) { 13. System.out.printIn(new B()); 14. } 15. } What is the result?()
第6题:
class A { public byte getNumber() { return 1; } } class B extends A { public short getNumber() { return 2; } public static void main(String args[]) { B b = new B(); System.out.println(b.getNumber()); } } What is the result?()
第7题:
class A { public int getNumber(int a) { return a + 1; } } class B extends A { public int getNumber (int a) { return a + 2 } public static void main (String args) { A a = new B(); System.out.printIn(a.getNumber(0)); } } What is the result? ()
第8题:
-1
255
127
Compilation will fail.
Compilation will succeed but the program will throw an exception at line 4.
第9题:
Compilation succeeds and d takes the value 253.
Line 5 contains an error that prevents compilation.
Line 5 throws an exception indicating “Out of range”
Line 3 and 4 contain error that prevent compilation.
The compilation succeeds and d takes the value of 1.
第10题:
Compilation succeeds and 1 is printed.
Compilation succeeds and 2 is printed.
An error at line 8 causes compilation to fail.
An error at line 14 causes compilation to fail.
Compilation succeeds but an exception is thrown at line 14.
第11题:
Compilation succeeds and 1 is printed.
Compilation succeeds and 2 is printed.
An error at line 8 causes compilation to fail.
An error at line 13 causes compilation to fail.
An error at line 14 causes compilation to fail.
第12题:
Compilation succeeds and 4 is printed.
Compilation succeeds and 43 is printed.
An error on line 9 causes compilation to fail.
An error on line 14 causes compilation to fail.
Compilation succeeds but an exception is thrown at line 9.
第13题:
下列代码执行之后,输出的结果为______。 public class ex34 { public static void main(String[] args) { byte a=-128; byte b=(a|127)>0?(byte)(~a>>128:(byte)(~a<<128); System. out. Println(b); } }
A.-128
B.128
C.127
D.-127
第14题:
public class test ( public static void main (String args) { int i = 0xFFFFFFF1; int j = ~i; } ) What is the decimal value of j at line 5?()
第15题:
1. class A { 2. public byte getNumber () { 3. return 1; 4. } 5. } 6. 7. class B extends A { 8. public short getNumber() { 9. return 2; 10. } 11. 12. public static void main (String args[]) { 13. B b = new B (); 14. System.out.printIn(b.getNumber()) 15. } 16. } What is the result?()
第16题:
package foo; import java.util.Vector; private class MyVector extends Vector { int i = 1; public MyVector() { i = 2; } } public class MyNewVector extends MyVector { public MyNewVector() { i = 4; } public static void main(String args[]) { MyVector v = new MyNewVector(); } } What is the result?()
第17题:
public class X { public static void main (String[] args) { byte b = 127; byte c = 126; byte d = b + c; } } Which statement is true?()
第18题:
public class Test { public static void replaceJ(string text) { text.replace (‘j’, ‘l’); } public static void main(String args[]) { string text = new String (“java”) replaceJ(text); system.out.printIn(text); } } What is the result?()
第19题:
1
2
An exception is thrown at runtime.
Compilation fails because of an error in line 8.
Compilation fails because of an error in line 14.
第20题:
Compilation succeeds and 4 is printed.
Compilation succeeds and 43 is printed.
An error on line 9 causes compilation to fail.
An error on line 14 causes compilation to fail.
Compilation succeeds but an exception is thrown at line 9.
第21题:
Compilation succeeds.
Compilation fails because of an error at line 5.
Compilation fails because of an error at line 6.
Compilation fails because of an error at line 14.
Compilation fails because of an error at line 17.
第22题:
Compilation succeeds and 1 is printed.
Compilation succeeds and 2 is printed.
An error at line 8 causes compilation to fail.
An error at line 14 causes compilation to fail.
Compilation succeeds but an exception is thrown at line 14.
第23题:
Compilation succeeds and 4 is printed.
Compilation …………… is printed.
An error on line 9 cause compilation to fail.
An error on line 14 cause compilation to fail.
Compilation succeeds but an exception is thrown at line 9.
第24题:
The program prints “lava”
The program prints “java”
An error at line 7 causes compilation to fail.
Compilation succeeds but the program throws an exception.