CS计算机代考程序代写 package ListPrepQuestions_PastExams

package ListPrepQuestions_PastExams

public class MyInteger {

public static int parseInt(String s) throws NumberFormatException {
int num = 0;

for (int i = 0; i < s.length(); i++) { if ((int) s.charAt(i) >= 48) {
if ((int) s.charAt(i) <= 57) { num = num * 10 + ((int) s.charAt(i) - 48); } else { throw new NumberFormatException(); } } else { throw new NumberFormatException(); } } return num; } }