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- public class Exercicio {
- public static void main (String[] args) {
- Integer intObj = new Integer(123);
- Long longObj = new Long(1234567890);
- Double doubleObj = new Double(12.345);
- Boolean boolObj = new Boolean(true);
- Object[] objArray = {intObj, longObj, doubleObj, boolObj};
- for(int i=0; i<objArray.length; i++) {
- if(objArray[i] instanceof Number) {
- System.out.println(objArray[i].toString()+" é um Number.");
- } else {
- System.out.println(objArray[i].toString()+" NÃO é um Number.");
- }
- }
- }
- }
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