I want to print the content of this attribute:
private HashMap<RegionVersObj, ArrayList<String[]>> region;
I have done this with the below code. Inside the toString(
) method I am iterating with the Map Entry. I have created a StringBuffer
object and appending the content in it.
public String toString() {
StringBuffer regionToPrint = new StringBuffer();
for (Map.Entry<RegionVersObj, ArrayList<String[]>> entry : region.entrySet())
{
regionToPrint.append(entry.getKey().toString());
regionToPrint.append("=[");
for(String[] s:entry.getValue()){
regionToPrint.append("[");
for(String s1:s){
regionToPrint.append(s1);
regionToPrint.append(",");
}
regionToPrint.append("],");
}
}
return "region=" + regionToPrint.toString();
}
This is the way I am trying to solving this. But I want to know is there any better way in which I can solve this?
Kindly use the JAVA 1.8. Since it has the more in build functions. Example we can make the String[]
array into comma separated values using String.join()
region.forEach((k,v)->{
regionToPrint.append(k.toString());
regionToPrint.append("=[");
for(String[] s:v){
regionToPrint.append("[");
regionToPrint.append(String.join(",", s));
regionToPrint.append("],");
}
regionToPrint.append("],");
});
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