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Author Question: The java.lang.Number and its subclasses are introduced in Chapter 11. Analyze the following code. ... (Read 72 times)

Pineapplelove6

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on: May 6, 2020
The java.lang.Number and its subclasses are introduced in Chapter 11. Analyze the following code.

Number numberRef = new Integer(0);
Double doubleRef = (Double)numberRef;

◦ The program runs fine, since Integer is a subclass of Double.
◦ You can convert an int to double, so you can cast an Integer instance to a Double instance.
◦ The compiler detects that numberRef is not an instance of Double.
◦ A runtime class casting exception occurs, since numberRef is not an instance of Double.
◦ There is no such class named Integer. You should use the class Int.
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Marked as best answer by Pineapplelove6 on May 6, 2020

itsakadoozi

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Reply #1 on: May 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Pineapplelove6

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Reply 2 on: May 6, 2020
Gracias!

mammy1697

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Reply 3 on: Yesterday
:D TYSM

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