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Number of lines in a file in Java
... is.close();
}
}
EDIT, 9 1/2 years later: I have practically no java experience, but anyways I have tried to benchmark this code against the LineNumberReader solution below since it bothered me that nobody did it. It seems that especially for large files my solution is faster. Although it...
Removing whitespace from strings in Java
...string is not modified as some of the answers sort of imply.
(Experienced Java developers might say "of course, you can't actually modify a String", but the target audience for this question may well not know this.)
share
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Things possible in IntelliJ that aren't possible in Eclipse?
...ings you to where clicked object is defined works everywhere - not only in Java classes and variables in Java code, but in Spring configuration (you can click on class name, or property, or bean name), in Hibernate (you can click on property name or class, or included resource), you can navigate wit...
Android Camera : data intent returns null
...ackages_apps_camera/blob/gingerbread-release/src/com/android/camera/Camera.java#L1186
Bundle newExtras = new Bundle();
if (mCropValue.equals("circle")) {
newExtras.putString("circleCrop", "true");
}
if (mSaveUri != null) {
newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri);
} else {...
How to remove single character from a String
For accessing individual characters of a String in Java, we have String.charAt(2) . Is there any inbuilt function to remove an individual character of a String in java?
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java.lang.RuntimeException: Unable to instantiate activity ComponentInfo
...
There is another way to get an java.lang.RuntimeException: Unable to instantiate activity ComponentInfo exception and that is the activity that you are trying to start is abstract. I made this stupid mistake once and its very easy to overlook.
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Why does (i
I have written a piece of Java code which is running in an infinite loop.
10 Answers
1...
What is the simplest way to convert a Java string from all caps (words separated by underscores) to
...h says it all. What's the simplest/most elegant way that I can convert, in Java, a string from the format "THIS_IS_AN_EXAMPLE_STRING" to the format " ThisIsAnExampleString "? I figure there must be at least one way to do it using String.replaceAll() and a regex.
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Any reason why scala does not explicitly support dependent types?
...a {
| val foo = foo1
| val bar = new foo.Bar
| }
sigma: java.lang.Object with Sigma{val bar: this.foo.Bar} = $anon$1@e3fabd8
and in fact, this is a crucial part of the encoding of dependent method types which is needed to escape from the 'Bakery of Doom' in Scala prior to 2.10 (...
What issues should be considered when overriding equals and hashCode in Java?
...ory (for the language lawyers and the mathematically inclined):
equals() (javadoc) must define an equivalence relation (it must be reflexive, symmetric, and transitive). In addition, it must be consistent (if the objects are not modified, then it must keep returning the same value). Furthermore, o....