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Help with Java function. Suppose I have a string input that contains letters followed by numbers....

Help with Java function.

Suppose I have a string input that contains letters followed by numbers. Can someone write a function that only returns the number values?

Ex: Input "dog12" should return 12. Edit: It should return 12 as an integer.

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Answer #1

public static int parseNumbers(String str){
String temp = "";//Temporary empty string to store only digits
for(char ch : str.toCharArray()){
if(Character.isDigit(ch))//Check if character is digit or not
temp += ch;//If yes, then add it to temporary string
}
return Integer.parseInt(temp);//Convert string to int and return
}

SAMPLE PROGRAM OUTPUT:

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