Java - Count number of symbols in string -

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let's have string:

string helloworld = "one,two,three,four!";

how can make counts number of commas in string helloworld?

the simplest way iterate through string , count them.

int commas = 0; for(int = 0; < helloworld.length(); i++) {     if(helloworld.charat(i) == ',') commas++; }  system.out.println(helloworld + " has " + commas + " commas!");

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