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How to format a number 0..9 to display with 2 digits (it's NOT a date)
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You can use:
String.format("%02d", myNumber)
See also the javadocs
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Does Java have a path joining method? [duplicate]
...r.
To quote a good answer to the same question:
If you want it back as a string later, you can call getPath(). Indeed, if you really wanted to mimic Path.Combine, you could just write something like:
public static String combine (String path1, String path2) {
File file1 = new File(path1);
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How to define two fields “unique” as couple
...ax_length=50)
class Meta:
unique_together = ('field1', 'field2',)
And in your case:
class Volume(models.Model):
id = models.AutoField(primary_key=True)
journal_id = models.ForeignKey(Journals, db_column='jid', null=True, verbose_name = "Journal")
volume_number = models.CharField('Vol...
How to map a composite key with JPA and Hibernate?
...Integer levelStation;
@Id
private Integer confPathID;
private String src;
private String dst;
private Integer distance;
private Integer price;
// getters, setters
}
The IdClass annotation maps multiple fields to the table PK.
With EmbeddedId
The class for the compo...
How to input a regex in string.replace?
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fixed (literal, constant) strings
– vstepaniuk
Jul 31 '19 at 11:54
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Does .asSet(…) exist in any API?
...with Java 8 you can do this without need of third-party framework:
Set<String> set = Stream.of("a","b","c").collect(Collectors.toSet());
See Collectors.
Enjoy!
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Does a “Find in project…” feature exist in Eclipse IDE?
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Ctrl + H is the best way!
Remember to copy the string before you start searching!
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Using Git with Visual Studio [closed]
...n Jan 2013, Microsoft announced that they are adding full Git support into all their ALM products. They have published a plugin for Visual Studio 2012 that adds Git source control integration.
Alternatively, there is a project called Git Extensions that includes add-ins for Visual Studio 2005, 2008...
Escape quote in web.config connection string
I have a connection string in my web config:
5 Answers
5
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How to create custom exceptions in Java? [closed]
...nds Exception {
public FooException() { super(); }
public FooException(String message) { super(message); }
public FooException(String message, Throwable cause) { super(message, cause); }
public FooException(Throwable cause) { super(cause); }
}
Methods that can potentially throw or propagat...