Java Logic for Printing Even & Odd's characters of a String

Scanner sc = new Scanner(System.in);
        int T = sc.nextInt();
        String S= null ;
       for(int i=0; i<T;i++)
        {
        S= sc.next();
        
        char[] characters = S.toCharArray(); 

        int j=0;
        for(j=0;j<characters.length;j++)
        {
           if(j%2==0){
               
           System.out.print(characters[j]);
           }
           
        }
        System.out.print(" ");
          
            for(j=0;j<characters.length;j++)
            {
           if(j%2==1)
           {
                   System.out.print(characters[j]);

           } 
        }
        System.out.println();
    
        }
        
    }
    

Python code

for _ in range(int(input())):
    s=input()
    even=s[::2]
    odd=s[1::2]
    print(even,odd)

Interesting approach using streams in Java:

import java.io.; import java.util.; import java.util.stream.IntStream; import java.util.stream.Collectors;

public class Solution {

public static void main(String[] args) {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
Scanner sc = new Scanner(System.in);
int test = sc.nextInt();
while(test > 0 ) {
    String text = sc.next();
    String evenString = IntStream.range(0, text.length())
    .filter(i -> i%2==0)
    .mapToObj(i -> String.valueOf(text.charAt(i)))
    .collect(Collectors.joining());

    String oddString = IntStream.range(0, text.length())
    .filter(i -> i%2 != 0)
    .mapToObj(i -> String.valueOf(text.charAt(i)))
    .collect(Collectors.joining());

    System.out.println(evenString +" " + oddString);
    test--;
}
sc.close();
}

}

int main() { /* Enter your code here. Read input from STDIN. Print output to STDOUT */

int testCase;
string Teststring;
cin>>testCase;



for(int i=0;i<testCase;i++){
    string oddString="";
    string evenString="";     

    cin>>Teststring;
    int len=Teststring.length();

int j=0;
    while(j!=len){

        if(j%2==0){
            evenString=evenString+Teststring[j];


        }
        else{
            oddString=oddString+Teststring[j];
        }
        j++;
    }
    cout<<evenString<<" "<<oddString<<endl;


}




return 0;

}