1.public class test (  2.public static void main (String args[])    {  3.int  i = 0xFFFFFFF1;  4.int  j = ~i;  5.    6.}  7.)    What is the decimal value of j at line 5?()  A、 0B、 1C、 14D、 –15E、 An error at line 3 causes compilation to fail.F、 An error at line 4 causes compilation to fail.

1.public class test (  2.public static void main (String args[])    {  3.int  i = 0xFFFFFFF1;  4.int  j = ~i;  5.    6.}  7.)    What is the decimal value of j at line 5?()  

  • A、 0
  • B、 1
  • C、 14
  • D、 –15
  • E、 An error at line 3 causes compilation to fail.
  • F、 An error at line 4 causes compilation to fail.

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1.public class GC{2.private Objec to;3.private void doSomethingElse(Object obj){o=obj;}4.public void doSomething(){5.Object o=new Object();6.doSomethingElse(o);7.o=new Object();8.doSomethingElse(null);9.o=null;10.}11.}When the doSomething method is called,after which line does the Object created in line 5 become available for garbage collection?()A.Line5B.Line6C.Line7D.Line8E.Line9F.Line10

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1.public class GC{ 2.private Objec to; 3.private void doSomethingElse(Object obj){o=obj;} 4.public void doSomething(){ 5.Object o=new Object(); 6.doSomethingElse(o); 7.o=new Object(); 8.doSomethingElse(null); 9.o=null; 10.} 11.} When the doSomething method is called,after which line does the Object created in line 5 become available for garbage collection?()A、Line5B、Line6C、Line7D、Line8E、Line9F、Line10

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1.public class Test {  2.public static void main (String args[]) {  3.class Foo {  4.public int i = 3;  5.}  6.Object o = (Object) new Foo();  7.Foo foo = (Foo)o;  8.System.out.printIn(foo. i); 9. }  10.}   What is the result?()  A、 Compilation will fail.B、 Compilation will succeed and the program will print “3”C、 Compilation will succeed but the program will throw a ClassCastException at line 6.D、 Compilation will succeed but the program will throw a ClassCastException at line 7.

单选题1.public class test (  2.public static void main (String args[])    {  3.int  i = 0xFFFFFFF1;  4.int  j = ~i;  5.    6.}  7.)    What is the decimal value of j at line 5?()A 0B 1C 14D –15E An error at line 3 causes compilation to fail.F An error at line 4 causes compilation to fail.

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单选题1.public class Test{ 2.int x=12; 3.public void method(intx){ 4.x+=x; 5.System.out.println(x); 6.} 7.} Given: 34.Test t=new Test(); 35.t.method(5); What is the output from line 5 of the Test class?()A5B10C12D17E24

单选题1.public class Test {  2.public static void main (String args[]) {  3.class Foo {  4.public int i = 3;  5.}  6.Object o = (Object) new Foo();  7.Foo foo = (Foo)o;  8.System.out.printIn(foo. i); 9. }  10.}   What is the result?()A Compilation will fail.B Compilation will succeed and the program will print “3”C Compilation will succeed but the program will throw a ClassCastException at line 6.D Compilation will succeed but the program will throw a ClassCastException at line 7.