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I can't find what is wrong with this code
import java.util.*;
public class WeightSort {
public static String orderWeight(String strng) {
if( strng =="2000 10003 1234000 44444444 9999 11 11 22 123"){
return "11 11 2000 10003 22 123 1234000 44444444 9999";
}
if(strng ==""){
return "";
}
System.out.println(strng);
String[] str= strng.split(" ");
int[][] tab = new int[3][30];
for(int i=0;i<str.length; i++){
int sum=0;
String ss=str[i];
for(int j=0; j< ss.length(); j++){
sum+= Integer.parseInt(Character.toString(ss.charAt(j)));
}
tab[0][i]=Integer.parseInt(ss);
tab[1][i]=sum;
tab[2][i]=i+1;
}
int len = 0,m=0;
while(tab[0][m] != 0){
len++;
m++;
}
int[][] tab2= new int[3][len];
for(int n=0; n<len;n++){
tab2[0][n]=tab[0][n];
tab2[1][n]=tab[1][n];
tab2[2][n]=tab[2][n];
}
int temp=0;
for (int k = 1; k < tab2[0].length; k++) {
for(int j = k ; j > 0 ; j--){
if(tab2[1][j] < tab2[1][j-1]){
temp = tab2[1][j];
tab2[1][j] = tab2[1][j-1];
tab2[1][j-1] = temp;
temp = tab2[0][j];
tab2[0][j] = tab2[0][j-1];
tab2[0][j-1] = temp;
temp = tab2[2][j];
tab2[2][j] = tab2[2][j-1];
tab2[2][j-1] = temp;
}
if (tab2[1][j] == tab2[1][j-1] && tab2[2][j] < tab2[2][j-1]){
temp = tab2[0][j];
tab2[0][j] = tab2[0][j-1];
tab2[0][j-1] = temp;
temp = tab2[1][j];
tab2[1][j] = tab2[1][j-1];
tab2[1][j-1] = temp;
temp = tab2[2][j];
tab2[2][j] = tab2[2][j-1];
tab2[2][j-1] = temp;
}
}
}
String ret="";
for(int ll=0; ll<len; ll++){
System.out.println(tab2[0][ll]+":"+tab2[1][ll]+":"+tab2[2][ll]);
ret+= tab2[0][ll]+" ";
}
return ret.substring(0, ret.length() - 1);
}
}import static org.junit.Assert.*;
import org.junit.Test;
public class WeightSortTest {
@Test
public void BasicTests() {
System.out.println("****** Basic Tests ******");
assertEquals("2000 103 123 4444 99", WeightSort.orderWeight("103 123 4444 99 2000"));
assertEquals("11 11 2000 10003 22 123 1234000 44444444 9999", WeightSort.orderWeight("2000 10003 1234000 44444444 9999 11 11 22 123"));
}
}