package te;

 public class StringConvert {

     static int[] a = {0,1,1,0,1,1,0,2};

     static String s = "0011223344";

     public static void main(String[] args) {

         StringConvert sc = new StringConvert();

         System.out.println(sc.intArray2Str(a));

         int[] b = sc.str2IntArray(s);

         for(int i=0; i<b.length; i++) {

             System.out.print(b[i]);

         }

     }

     String intArray2Str(int[] a) {

         int len = a.length;

         String str="";

         for(int i=0;i<len; i++) {

             str+=String.valueOf(a[i]);

         }

         return str;

     }

     int[] str2IntArray(String str) {

         int len = str.length();

         int[] a = new int[len];

         char[] c = str.toCharArray();

         for(int i=0; i<len; i++) {

             a[i] = c[i]-'0';

         }

         return a;

     }

 }

01101102

0011223344

 package te;

 import java.util.regex.Matcher;

 import java.util.regex.Pattern;

 public class StringConvert {

     static int[] a = {0,1,1,0,1,1,0,2};

     static String s = "0011223340004";

     public static void main(String[] args) {

         StringConvert sc = new StringConvert();

         System.out.println(sc.intArray2Str(a));

         int[] b = sc.str2IntArray(s);

         for(int i=0; i<b.length; i++) {

             System.out.print(b[i]);

         }

         System.out.print('\n');

         sc.indexsof(s);

     }

     String intArray2Str(int[] a) {

         int len = a.length;

         String str="";

         for(int i=0;i<len; i++) {

             str+=String.valueOf(a[i]);

         }

         return str;

     }

     int[] str2IntArray(String str) {

         int len = str.length();

         int[] a = new int[len];

         char[] c = str.toCharArray();

         for(int i=0; i<len; i++) {

             a[i] = c[i]-'0';

         }

         return a;

     }

     int[] indexsof(String s) {

          Pattern p = Pattern.compile("[0]");

          Matcher m = p.matcher(s);

          while(m.find()) {

              System.out.println(m.start());

          }

         return null;

     }

 }