17 questions
public MyParameterizedFunction(String param1, int param2) { this(param1, param2, false); } public MyParameterizedFunction(String param1, int param2, boolean param3) { //use all three parameters here...
What kind of method do you use to return multiple values in a function?The method I'm using is as follows.def f(x): y0 = x + 1 y1 = x * 3 y2 = y0 ** y3 return (y0,y1,y2)When there are more elements, i...
If you look at the same example below in the OOP book, If you have an Animal class, each animal has several friends. And the subclasses are Dog, Duck, Mouse, etc. Each of them makes a bark(), a quack(...
int main (){ int a = 5,b = 2; printf(%d,a+++++b); return 0;}error: lvalue required as increment operandThe code above cannot be executed, but if you write a++++b together, it will be executed, right?W...
int array[100] = {0};I heard that the entire silver element is set to zero, so I thought I just need to set oneint array[100] = {-1};So the first element is minus 1, and the rest is zero.I don't want ...
I've always thought that Java is a pass-by-reference. But I saw a blog claiming it wasn't. (Here's a link: http://javadude.com/articles/passbyvalue.htm)I don't know the difference. Please explain.
The main sent a String value to the second screen through the int. On the second screen, three tabs and a viewfager are used, and each tab is made up of fragments.However, when you click a button on t...
What is the difference between the two codes below?Code A:Foo myFoo;myFoo = createFoo();CreateFoo method public Foo createFoo(){ Foo foo = new Foo(); return foo;}Code B:Foo myFoo;createFoo(myFoo);publ...
I'm studying c++ for the first time! When there is a function test that overrides the function of A in B when A is a child class, parent B is a child class, A ref = new B; ref.test();I thought that fu...
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