**JAVA OOP** Consider the following code: public class JavaIsGood { public stati
ID: 3595562 • Letter: #
Question
**JAVA OOP**
Consider the following code:
public class JavaIsGood {
public static void main(String[] args) {
String str = new String("I love Java!");
Object obj = str;
String n = (String)obj;
}
}
Select the option(s) that you think correspond with the code above.
Multiple answers may be correct.
1) str, obj, and n reference the same String object.
2)When casting obj to str in String n = (String)obj, an explicit casting was used.
3)When assigning str to obj in Object obj = str, a new object is created.
4)When declaring str in String str = new String(..), the String constructor is being invoked from the class String.
5)When casting obj to str in String n = (String)obj, a new object is created.
6)When casting obj to str in String n = (String)obj, the contents of obj are changed.
8)The new keyword in the line String str = new String(..), is instantiating the class String which means the same thing as creating a String object.
1) str, obj, and n reference the same String object.
Explanation / Answer
1) str, obj, and n reference the same String object.
2)When casting obj to str in String n = (String)obj, an explicit casting was used.
4)When declaring str in String str = new String(..), the String constructor is being invoked from the class String.
7)When casting obj to str in String n = (String)obj, an implicit casting was used.
8)The new keyword in the line String str = new String(..), is instantiating the class String which means the same thing as creating a String object.
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