Exhibit:
1. public class enclosingone ( 2. public class insideone{} 3. )
4. public class inertest(
5. public static void main (string[]args)( 6. enclosingone eo= new enclosingone (); 7. //insert code here 8. ) 9. )
Which statement at line 7 constructs an instance of the inner class? A. InsideOnew ei= eo.new InsideOn(); B. Eo.InsideOne ei = eo.new InsideOne();
C. InsideOne ei = EnclosingOne.new InsideOne(); D. EnclosingOne.InsideOne ei = eo.new InsideOne(); Answer: D Question No 15 Exhibit:
1. interface foo { 2. int k = 0; 3. ] 4.
5. public class test implements Foo ( 6. public static void main(String args[]) ( 7. int i;
8. Test test = new test (); 9. i= test.k; 10.i= Test.k; 11.i= Foo.k; 12.) 13.) 14.
What is the result?
A. Compilation succeeds.
B. An error at line 2 causes compilation to fail. C. An error at line 9 causes compilation to fail. D. An error at line 10 causes compilation to fail. E. An error at line 11 causes compilation to fail. Answer: A
Question No 16 Given: 1. //point X
2. public class foo (
3. public static void main (String[]args) throws Exception {
4. printWriter out = new PrintWriter (new
5. java.io.outputStreamWriter (System.out), true; 6. out.printIn(“Hello”); 7. } 8. )
Which statement at PointX on line 1 allows this code to compile and run? A. Import java.io.PrintWriter; B. Include java.io.PrintWriter;
C. Import java.io.OutputStreamWriter; D. Include java.io.OutputStreamWriter; E. No statement is needed. Answer: A
Question No 17
Which two statements are reserved words in Java? (Choose Two) A. Run B. Import C. Default D. Implement Answer: B, C Question No 18
Which three are valid declarations of a float? (Choose Three) A. Float foo = -1; B. Float foo = 1.0; C. Float foo = 42e1; D. Float foo = 2.02f; E. Float foo = 3.03d; F. Float foo = 0x0123; Answer: A, D, F
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Leading the way in IT testing and certification tools, www.testking.com Question No 19 Given:
8. int index = 1;
9. boolean[] test = new Boolean[3]; 10. boolean foo= test [index]; What is the result?
A. Foo has the value of 0. B. Foo has the value of null.
C. Foo has the value of true. D. Foo has the value of false. E. An exception is thrown. F. The code will not compile. Answer: D Question No 20 Given:
1. public class test(
2. public static void main(string[]args){ 3. string foo = args [1]; 4. string foo = args [2]; 5. string foo = args [3]; 6. } 7. }
And command line invocation: Java Test red green blue What is the result?
A. Baz has the value of “” B. Baz has the value of null C. Baz has the value of “red” D. Baz has the value of “blue” E. Bax has the value of “green” F. The code does not compile.
G. The program throws an exception. Answer: G Question No 21 Given:
8. int index = 1;
9. int [] foo = new int [3]; 10.int bar = foo [index]; 11.int baz = bar + index; What is the result?
A. Baz has the value of 0 B. Baz has the value of 1 C. Baz has the value of 2 D. An exception is thrown. E. The code will not compile. Answer: B
Question No 22 Given:
1. public class foo {
2. public static void main (String[]args) { 3. String s;
4. system.out.printIn (“s=” + s);
5. } 6. }
What is the result?
A. The code compiles and “s=” is printed. B. The code compiles and “s=null” is printed.
C. The code does not compile because string s is not initialized. D. The code does not compile because string s cannot be referenced.
E. The code compiles, but a NullPointerException is thrown when toString is called. Answer: C
Question No 23
Which will declare a method that forces a subclass to implement it? A. Public double methoda();
B. Static void methoda (double d1) {} C. Public native double methoda(); D. Abstract public void methoda();
E. Protected void methoda (double d1){} Answer: D Question No 24
You want subclasses in any package to have access to members of a superclass. Which is the most restrictive access modifier that will accomplish this objective? A. Public B. Private C. Protected D. Transient
E. No access modifier is qualified Answer: C
Question No 25 Given:
1. abstract class abstrctIt { 2. abstract float getFloat (); 3. )
4. public class AbstractTest extends AbstractIt { 5. private float f1= 1.0f;
6. private float getFloat () {return f1;} 7. }
What is the result?
A. Compilation is successful.
B. An error on line 6 causes a runtime failure. C. An error at line 6 causes compilation to fail. D. An error at line 2 causes compilation to fail. Answer: C
Question No 26 Exhibit:
1. public class test(
2. public int aMethod()[ 3. static int i=0; 4. i++; 5. return I; 6. )
7. public static void main (String args[]){ 8. test test = new test(); 9. test.aMethod();
10.int j = test.aMethod(); 11.System.out.printIn(j); 12.] 13.}
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” Answer: D
Question No 27 Given:
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; } Answer: B
Question No 28
Which declaration prevents creating a subclass of an outer class? A. Static class FooBar{} B. Private class FooBar{}
C. Abstract public class FooBar{} D. Final public class FooBar{} E. Final abstract class FooBar{} Answer: D Question No 29 Given:
1. byte [] arry1, array2[];