Alternatively, you can use an Ints method from the Guava library, which in combination with Java 8's Optional, makes for a powerful and concise way to convert a string into an int:

int i = 1234; String str = Integer.toString(i); Returns a String object representing the specified integer. The argument is converted to signed decimal representation and returned as a string, exactly as if …

Nov 5, 2010 · If you say ""+i, Java creates a StringBuilder object, appends an empty string to it, converts the integer to a string, appends this to the StringBuilder, then converts the StringBuilder to a String.

May 31, 2017 · The first two examples are actually identical, since String.valueOf (int) uses the Integer.toString (int) method. The third is ugly, and probably less efficient since concatenation is slow …

Jun 23, 2009 · Note: Java 6u14 allows you to increase the size of your Integer pool with a command line option -Djava.lang.Integer.IntegerCache.high=1024 for example. Note 2: If you are reading raw data …

¿Cómo convertir un String en Int en Java? [duplicada] Formulada hace 8 años y 7 meses Modificada hace 8 años y 7 meses Vista 216k veces

The main adavantage is that there is a String.valueOf method for boolean, char, int, long, float, double and Object, so the same method name can be used to convert anything to a String.

Jan 30, 2011 · How do I convert an integer variable to a string variable in Java?

Apr 20, 2010 · I have the following values: int a=1; int b=0; int c=2; int d=2; int e=1; How do i concatenate these values so that i end up with a String that is 10221; please note that multiplying a …

Oct 14, 2010 · String.valueOf(i) It feels slightly more right than Integer.toString(i) to me. When the type of i changes, for example from int to double, the code will stay correct.