What methods can be overridden in Java?

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In C++ terminology, all public methods in Java are virtual. Therefore, all Java methods can be overwritten in subclasses except those that are declared final, static, and private.

2012-03-27, 3292👍, 0💬

Will the following program execute? C++
Will the following program execute? C++ Will the following program execute? void main() { void *vptr = (void *) malloc(sizeof(void)); vptr++; } Answer1 It will throw an error, as arithmetic operations cannot be performed on void pointers. Answer2 It will not build as sizeof cannot be applied to void... 2012-03-23, 3630👍, 0💬

Will it execute or not? C++
Will it execute or not? C++ void main() { char *cptr = 0?2000; long *lptr = 0?2000; cptr++; lptr++; printf(” %x %x”, cptr, lptr); }Will it execute or not? Answer1 For Q2: As above, won’t compile because main must return int. Also, 0×2000 cannot be implicitly converted to a pointer (I assume you mea... 2012-03-26, 3392👍, 0💬

What is the difference between Mutex and Binary semaphore?
What is the difference between Mutex and Binary semaphore? semaphore is used to synchronize processes. where as mutex is used to provide synchronization between threads running in the same process. 2012-03-26, 3299👍, 0💬

What methods can be overridden in Java?
What methods can be overridden in Java? In C++ terminology, all public methods in Java are virtual. Therefore, all Java methods can be overwritten in subclasses except those that are declared final, static, and private. 2012-03-27, 3293👍, 0💬

Assignment Operator - What is the diffrence between a "assignment operator" and a "copy constructor"?
Assignment Operator - What is the diffrence between a "assignment operator" and a "copy constructor"? Answer1. In assignment operator, you are assigning a value to an existing object. But in copy constructor, you are creating a new object and then assigning a value to that object. For example: compl... 2012-03-30, 3275👍, 0💬

Can you be bale to identify between Straight- through and Cross- over cable wiring? and in what case do you use Straight- throug
Can you be bale to identify between Straight- through and Cross- over cable wiring? and in what case do you use Straight- through and Cross-over? Straight-through is type of wiring that is one to connection, Cross- over is type of wiring which those wires are got switched We use Straight-through cab... 2012-03-29, 3246👍, 0💬

What are the defining traits of an object-oriented language?
What are the defining traits of an object-oriented language? The defining traits of an object-oriented langauge are: * encapsulation * inheritance * polymorphism 2012-03-28, 3242👍, 0💬

If you hear the CPU fan is running and the monitor power is still on, but you did not see any thing show up in the monitor scree
If you hear the CPU fan is running and the monitor power is still on, but you did not see any thing show up in the monitor screen. What would you do to find out what is going wrong? I would use the ping command to check whether the machine is still alive(connect to the network) or it is dead. 2012-03-29, 3229👍, 0💬

Are there any new intrinsic (built-in) data types?
Are there any new intrinsic (built-in) data types? Yes. The ANSI committee added the bool intrinsic type and its true and false value keywords. 2012-03-23, 3205👍, 0💬

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