How to convert a char array containing double valu

问题:

Sorry, if I am not posting my try. I have no idea how to approach this.

I want charArr to be converted to doubleVal:

char[] charArr = {'1'','1','.','1','1','1'};
double doubleVal = 11.11;

回答1:

here is a hint

• convert the char array to string. ( see String.valueOf method)
• convert the string to double value ( see Double.parseDouble)

回答2:

Something like this:

StringBuilder sb = new StringBuilder();
sb.append(charArr);
Double d = Double.parseDouble(sb.toString());

回答3:

Something like that: you can try this

for(int i=0; i<charArr.length;i++){
char c =charArr[i];
Double d = Double.parseDouble(c.toString());
// do some operation
}