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java:jfc_intf_sort
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| Both sides previous revision Previous revision | |||
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java:jfc_intf_sort [2021/04/05 06:59] gthanos [Συγκρίνοντας με χρήση ενός Comparator object] |
java:jfc_intf_sort [2021/04/05 07:13] gthanos |
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| Line 42: | Line 42: | ||
| | | ||
| public boolean equals(Object o) { | public boolean equals(Object o) { | ||
| + | if(o == null) | ||
| + | return false; | ||
| return (o instanceof Student && o.hashCode() == this.hashCode()); | return (o instanceof Student && o.hashCode() == this.hashCode()); | ||
| } | } | ||
java/jfc_intf_sort.txt · Last modified: 2021/04/05 06:13 (external edit)
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