public static String[] splitString(String str,int splitLength){
char[] cs=str.toCharArray();
int resultArrayLength=cs.length/splitLength;
if(cs.length%splitLength!=0){
resultArrayLength++;
}
String[] resultArray=new String[resultArrayLength];
for (int j = 0; j <resultArray.length; j++) {
if(j==resultArray.length-1){
splitLength=cs.length-splitLength*j;
}
resultArray[j]=new String(cs,splitLength*j,splitLength);
}
return resultArray;
}