Answer: Option 1
The options B, C and D are incorrect options as in Java we can declare an abstract class comprising of abstract and non-abstract methods that will not...
Answer: Option 2
Object will be created each time whenever we use new keyword. So, 2 object will be created simply for the first two line and matter is with...
Answer: Option 3
The code above converts all “_” to white spaces. Call the filter_var() function with the FILTER_CALLBACK filter and an array containing our function.