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Oct 24, 2011 · String text = String.format("The answer is %s", answer); rather than the more usual: int answer = 42; String text = String.format("The answer is %d", answer); The reason I'm asking is that I want to make some automated changes to source code, and it would be inconvenient to have to figure out whether the type of answer is int or String or ...
Nov 16, 2019 · Those two replaceAll calls will always produce the same result, regardless of what x is. However, it is important to note that the two regular expressions are not the same: \\s - matches single whitespace character. \\s+ - matches sequence of one or more whitespace characters. In this case, it makes no difference, since you are replacing ...
That regex "\\s*,\\s*" means: \s* any number of whitespace characters. a comma. \s* any number of whitespace characters. which will split on commas and consume any spaces either side. edited Dec 6, 2012 at 19:17. answered Dec 6, 2012 at 19:10. Bohemian ♦.
The method is easy to use and the format pattern is defined by underlying formatter. String step1 = "one"; String step2 = "two"; // results in "Step one of two". String string = String.format("Step %s of %s", step1, step2); You can pass a Locale to respect the language and regional specification.
Yes, it is a shorthand form of. count = getHereCount(index); count = getAwayCount(index); It's called the conditional operator. Many people (erroneously) call it the ternary operator, because it's the only ternary (three-argument) operator in Java, C, C++, and probably many other languages.
Jun 14, 2018 · The %s will essentially call the object's toString() method. So most probably you will always get the integer as is. The %d is informing the formatter it is actually an integer. There might be Locale specific formatting to abide to if for example it is using a Locale which has a different number system etc.
Jan 2, 2010 · It is the Bitwise xor operator in java which results 1 for different value of bit (ie 1 ^ 0 = 1) and 0 for same value of bit (ie 0 ^ 0 = 0) when a number is written in binary form. ex :-. To use your example: The binary representation of 5 is 0101. The binary representation of 4 is 0100.
First things start with \s (lower case), which is a regular expression character class for white space, that is space ' ' tabs '\t', new line chars '\n' and '\r', vertical tab '\v' and a bunch of other characters. \S (upper case) is the opposite of this, so that would mean any non white space character.
Nov 22, 2019 · 1. In short, the answer is "Yes". In Java, the == operator compares the two objects to see if they point to the same memory location; while the .equals() method actually compares the two objects to see if they have the same object value. edited Dec 18, 2018 at 6:23.
Sep 20, 2017 · 0. These are escape characters which are used to manipulate string. \t Insert a tab in the text at this point. \b Insert a backspace in the text at this point. \n Insert a newline in the text at this point. \r Insert a carriage return in the text at this point. \f Insert a form feed in the text at this point.
