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What method in the String class returns only the first N characters?

I'd like to write an extension method to the String class so that if the input string to is longer than the provided length N , only the first N characters are to be displayed. ...
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How to go about formatting 1200 to 1.2k in java

...and was more difficult to read. private static final NavigableMap<Long, String> suffixes = new TreeMap<> (); static { suffixes.put(1_000L, "k"); suffixes.put(1_000_000L, "M"); suffixes.put(1_000_000_000L, "G"); suffixes.put(1_000_000_000_000L, "T"); suffixes.put(1_000_000_000_0...
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How to convert a string to lower or upper case in Ruby

How do I take a string and convert it to lower or upper case in Ruby? 11 Answers 11 ...
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hexadecimal string to byte array in python

I have a long Hex string that represents a series of values of different types. I wish to convert this Hex String into a byte array so that I can shift each value out and convert it into its proper data type. ...
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HTML5: number input type that takes only integers?

...signed ints you'll have to fall back to "pattern" validation and thus lose extra features like the up and down arrows for browsers that support it). Is there another input type or perhaps an attribute that would restrict the input to just unsigned integers? I couldn't find any, thanks. ...
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How to convert a string of numbers to an array of numbers?

I have below string - 14 Answers 14 ...
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What is meant by immutable?

...ssues with objects that never change e.g. class Foo { private final String myvar; public Foo(final String initialValue) { this.myvar = initialValue; } public String getValue() { return this.myvar; } } Foo doesn't have to worry that the calle...
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How do you append an int to a string in C++? [duplicate]

... With C++11, you can write: #include <string> // to use std::string, std::to_string() and "+" operator acting on strings int i = 4; std::string text = "Player "; text += std::to_string(i); ...
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How to loop backwards in python? [duplicate]

... All of these three solutions give the same results if the input is a string: 1. def reverse(text): result = "" for i in range(len(text),0,-1): result += text[i-1] return (result) 2. text[::-1] 3. "".join(reversed(text)) ...
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Is there a C# type for representing an integer Range?

...sents the Range in readable format.</summary> /// <returns>String representation of the Range</returns> public override string ToString() { return string.Format("[{0} - {1}]", this.Minimum, this.Maximum); } /// <summary>Determines if the range is ...