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I've been experiencing occasional lags in my Android game when the garbage collector runs. I ran DDMS and discovered that all of the memory being allocated by my application is from this line:
scoreString = String.valueOf(score);
What is the best way to convert an integer to a string without allocating any memory?
945
Using the to_string() Method This function is used to convert not only the integer but numerical values of any data type into a string. The to_string() method is included in the header file of the class string, i.e., <string> or <cstring>.
The Integer.toString() method converts int to String. The toString() is the static method of Integer class. The signature of toString() method is given below: public static String toString(int i)
Using __str__() to convert an integer to string in python So, we can directly call the __str__() on the object. In our case we passed integer to str() function in previous example. Instead of it, we can directly call the __str__() function on int object to get a string representation of the integer i.e.
Allocate an array of characters to be displayed as the score, and use a lookup table of 0-9 (this conveniently maps to a 0-base array anyway) to append to this array based on each digit of the score.
Edit: To extract the digits from your score:
12345 mod 10 = 5 12345 mod 100 = 45 / 10 = 4.5 (floors to 4) 12345 mod 1000 = 345 / 100 = 3.45 (floors to 3) 12345 mod 10000 = 2345 / 1000 = 2.345 (floors to 2) 12345 mod 100000 = 12345 / 10000 = 1.2345 (floors to 1)
Also you'll know what the max length for the score character array should be based on whatever you're using to store score (i.e. int)
I recommend reverse-filling this array and initializing it to all '0' so your score will display like
0000000000 0000005127
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