static LinkedHashMap counts = new

LinkedHashMap();

public static void FourRepresentation(long x) {


    // i^2 + j^2
    for (long i = 1; i <= (int) Math.sqrt(x); i++) {
        for (long j = 1; j <= (int) Math.sqrt(x); j++) {

            if (i * i + 7 * j * j < x  && i * i + 7 * j * j >190 ) {
                counts.put(i * i + 7 * j * j, 1);
            }

        }
    }


    loop:
    for(long i=1;i<= (int)Math.sqrt(x) ;i++){
    for(long j=1;j<=(int)Math.sqrt(x); j++){

    if(counts.containsKey(i*i +  j *j) && counts.get(i*i + j *j) == 1){
    counts.put( (i*i + j*j), counts.get(i*i +  j*j)+1);
    }
    }
    }

    loop2:
    for(long i=1;i<= (int)Math.sqrt(x) ;i++){
    for(long j=1;j<= (int)Math.sqrt(x) ; j++){
    if(counts.containsKey(i*i + 3 * j *j) && counts.get(i*i + 3 * j *j) == 2 ){
    counts.put( (i*i + 3 * j*j), counts.get(i*i + 3 * j*j)+1);

    }
    }
    }

    loop1:
    for(long i=1;i<= (int)Math.sqrt(x) ;i++){
    for(long j=1;j<=(int)Math.sqrt(x) ; j++){

    if(counts.containsKey(i*i + 2 * j *j) && counts.get(i*i + 2 * j *j) == 3 ){
    counts.put( (i*i + 2 * j*j),counts.get(i*i + 2* j*j)+1);

    }

    }
    }



            **How to optimize this ! thanks**


    System.out.println(Collections.frequency(counts.values(), 4));

1. }