1) http://javabat.com/prob?id=String3.sumNumbers
Expand|Select|Wrap|Line Numbers
- public int sumNumbers(String str) {
- String retString = "";
- String m = "";
- int temp = 0;
- for (int k = 0; k < str.length(); k++)
- {
- char c = str.charAt(k);
- if (Character.isLetterOrDigit(c))
- {
- retString += c;
- }
- }
- for (int i = 0; i < str.length(); i++)
- {
- m = str.charAt(i);
- if (Character.isDigit(m))
- {
- temp += m;
- }
- }
- return temp;
- }
Expand|Select|Wrap|Line Numbers
- public boolean canBalance(int[] nums) {
- int temp = 0;
- for (int i = 0; i < nums.length; i++)
- {
- temp += nums[i];
- }
- if (temp % 2 == 0)
- {
- return true;
- }
- else
- {
- return false;
- }
- }
4) http://javabat.com/prob?id=Array3.squareUp
As you can see, I need help...thanks