怎么将python代码改成Java代码

import pandas as pd
from collections import Counter
import numpy as np
K=7
dataO = pd.read_table('homoN.txt', header=None, delim_whitespace=True)
PepN = dataO.values

ll=17
sap=list()
AM = 'ACDEFGHIKLMNPQRSTVWYX';
for i in range(0, 21):
    for j in range(0, 21):
        sap.append(AM[i]+AM[j]);

(m, n) = PepN.shape
for k in range(0,K):
    saap = np.zeros((m, 441,K))
    for i in range(0,m):
        pep = list()
        a=PepN[i];
        b=a[0]
        for j in range(0,len(b)):
            if j+k+1<len(b):
                pep.append(b[j]+b[j+k+1]);
            elif j+k+1>=len(b):
                pep.append(b[j]+'X');
        result = Counter(pep)
        ss =list(result.keys())
        val = list(result.values())
        for kk in range(0,len(ss)):
             mk = sap.index(ss[kk]);
             saap[i,mk,k] = val[kk]/441;

saapAll = np.concatenate((saap[:,:,0],saap[:,:,1],saap[:,:,2],saap[:,:,3],saap[:,:,4],saap[:,:,5],saap[:,:,6]),axis=1)

print(saapAll)

这个改写了也没用，因为java里面没有pandas numpy和counter
你不但要将这些代码改写，还要模拟实现read_table concatenate 等等这些函数
工作量不小