Does Java support Default Parameters

Question

I came across some Java code that had the following structure:

public ParameterizedFunction(String param1, int param2)
{
    this(param1, param2, false);
}

public ParameterizedFunction(String param1, int param2, boolean param3)
{
    //use all three parameters here
}

I know that in C++ I can assign a parameter a default value. For example:

void ParameterizedFunction(String param1, int param2, bool param3=false);

Does Java support this syntax? 

Answer 1

No, the structure you found is how Java handles it.

Effective Java: Programming Language Guide's for constructors, Item 1 tip if the overloading is getting complicated.

For other methods, renaming some cases or using a parameter object can help

This happens when you have enough complexity such that  you cannot differentiate between them

 A definite case is where you have to differentiate using the order of parameters, not just number and type

Answer 2

Try this solution:

public int getScore(int score, Integer... bonus)
{
    if(bonus.length > 0)
    {
        return score + bonus[0];
    }
    return score;
}

Answer 3

You can try this with method overloading.

void foo(String a, Integer b) {
    //...
}

void foo(String a) {
    foo(a, 0); // here, 0 is a default value for b
}

foo("a", 2);
foo("a");