Converting types

[javatech007]

How would you convert a string that is loaded from a txt file into a integer so it can be used for calculations?

[BigDaddyLH]

How would you convert a string that is loaded from a txt file into a integer so it can be used for calculations?

The Integer class has parsing methods: http://java.sun.com/javase/6/docs/ap...g/Integer.html

[rodeoval]

String intValue;
Integer integer = new Integer(intValue);
int value = integer.intValue();

[Doegon]

alternatively you could use a scanner object to read from the file and use the function of parseInt to convert from string to integer and use the value for calculations.
i.e
Scanner inFile = new Scanner(new FileReader("filename"));
String x = inFile.next();
int x2 = Integer.parseInt(x);

then int sqr = Math.pow(x2,2); //this is just an example of a calculation you can do after converting

Note: read more on the Scanner class API and Integer to understand what i just wrote.

hope its easier to understand and helps you.
good luck

[BigDaddyLH]

String intValue;
Integer integer = new Integer(intValue);
int value = integer.intValue();

Or, in one line:

int value = Integer.parseInt(str);