Home > Java Programming > Garbage Collections > Questions and Answers
Exercise:
| 01. |
public class X { public static void main(String [] args) { X x = new X(); X x2 = m1(x); /* Line 6 */ X x4 = new X(); x2 = x4; /* Line 8 */ doComplexStuff(); } static X m1(X mx) { mx = new X(); return mx; } } After line 8 runs. how many objects are eligible for garbage collection? | |||||||||||
|
| 02. |
2. public Object m() { Object o = new Float(3.14F); Object [] oa = new Object[l]; oa[0] = o; /* Line 5 */ o = null; /* Line 6 */ oa[0] = null; /* Line 7 */ return o; /* Line 8 */ } When is the Float object, created in line 3, eligible for garbage collection? | |||||||||||
|
| 03. |
void start() { A a = new A(); B b = new B(); a.s(b); b = null; /* Line 5 */ a = null; /* Line 6 */ System.out.println("start completed"); /* Line 7 */ } When is the B object, created in line 3, eligible for garbage collection? | |||||||||||
|
| 04. | Which statement is true? | |||||||||||
|
View Answer
Report
Discuss in Forum