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How to pass a function as a parameter in Java? [duplicate]
...ing
}
then call it, perhaps using an anonymous inner class:
dansMethod(100, new Callable<Integer>() {
public Integer call() {
return methodToPass();
}
});
Keep in mind this is not a 'trick'. It's just java's basic conceptual equivalent to function pointers.
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Value Change Listener to JTextField
...
public void warn() {
if (Integer.parseInt(textField.getText())<=0){
JOptionPane.showMessageDialog(null,
"Error: Please enter number bigger than 0", "Error Message",
JOptionPane.ERROR_MESSAGE);
}
}
});
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How to access the last value in a vector?
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Jack Bashford
37.2k1010 gold badges3535 silver badges5959 bronze badges
answered Sep 17 '08 at 13:32
lindeloflindelof
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Spring mvc @PathVariable
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edited Jul 14 '16 at 20:59
Community♦
111 silver badge
answered Nov 6 '13 at 4:10
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are there dictionaries in javascript like python?
...TX":["fred", "harry"]
};
And to access the values:
states_dictionary.AK[0] //which is liza
or you can use javascript literal object notation, whereby the keys not require to be in quotes:
states_dictionary={
CT:["alex","harry"],
AK:["liza","alex"],
TX:["fred", "harry"]
};
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How can I group by date time column without taking time into consideration
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OdedOded
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3
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How do I get the number of elements in a list?
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2690
The len() function can be used with several different types in Python - both built-in types and ...
How do you embed binary data in XML?
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edited Sep 11 '08 at 14:08
answered Aug 21 '08 at 13:37
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How to disable a link using only CSS?
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1370
The answer is already in the comments of the question. For more visibility, I am copying this so...
Most efficient way to concatenate strings?
...ch better than using the + operator. But I've found that, when executing 1000 concatenations or less, String.Join() is even more efficient than StringBuilder.
StringBuilder sb = new StringBuilder();
sb.Append(someString);
The only problem with String.Join is that you have to concatenate the stri...