Doubts about java.util.Date

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1

Someone can explain to me what this will return: 

java.util.Date date = new java.util.Date();
java.util.Date date1 = date;
java.util.Date date2 = (java.util.Date(date.clone()));
System.out.println(date==date1);
System.out.println(date==date2);
System.out.println(date.equals(date2)));
    
asked by anonymous 23.01.2017 / 23:21

1 answer

2

There are problems in two lines:

Nessa: 

java.util.Date date2 = (java.util.Date(date.clone()));

The correct one is to make a cast to java.util.Date because clone() returns type Object : 

java.util.Date date2 = (java.util.Date)date.clone();

and in this: 

System.out.println(date.equals(date2)));

has an extra parenthesis, only remove the last.

Complete and trouble-free code: 

java.util.Date date = new java.util.Date();
java.util.Date date1 = date;
java.util.Date date2 = (java.util.Date)date.clone();
System.out.println(date==date1); // saída: true
System.out.println(date==date2); // saída: false
System.out.println(date.equals(date2)); // saída: true

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