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hashmap and multiple txt files java


hashmap and multiple txt files java

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hashmap and multiple txt files java
Tag : java , By : liquidx
Date : November 25 2020, 03:01 PM

it helps some times You are calling engJapDictionary.put(parts[0], parts2[0]); for the first word of the first file with all the words of the second file. Then, you don't put any other words of the first file in the Map, since you finished iterating over the second file in the first run of the inner loop, so line2 = bufferedReader1.readLine() returns null.
You don't need a nested loop, just a single loop that reads a line from both files in each iteration:
while ((line = bufferedReader.readLine()) != null && (line2 = bufferedReader1.readLine()) != null) {
    String parts[] = line.split("\t");
    String parts2[] = line2.split("\t");
    engJapDictionary.put(parts[0], parts2[0]);
}

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Show multiple values for multiple keys in Java Hashmap


Tag : java , By : Felix Almeida
Date : March 29 2020, 07:55 AM
like below fixes the issue The reason why you have only last list included is because of your insert method:
List <String> list= new ArrayList<String>();
    list.add("0321564988");
    list.add("7891268429");
    contacts.addContact("Name1",list);
    list.clear();
    list.add("1891219122");
    list.add("9495198929");
    contacts.addContact("Name2",list);
    list.clear();
    list.add("8949219912");
    contacts.addContact("Name3",list);
List <String> list= new ArrayList<String>();
    list.add("0321564988");
    list.add("7891268429");
    contacts.addContact("Name1",list);
List <String> list1= new ArrayList<String>();
    list1.add("1891219122");
    list1.add("9495198929");
    contacts.addContact("Name2",list1);
List <String> list2= new ArrayList<String>();
    list2.add("8949219912");
    contacts.addContact("Name3",list2);

convert JSON file to a hashmap in java with error Can not deserialize instance of java.util.HashMap out of START_ARRAY t


Tag : java , By : Gianluca Riccardi
Date : March 29 2020, 07:55 AM
may help you . Try reading it in as an array of maps.
A json map would look like this:
{ "AC": 1.1324, "AD": 0.64956, "AE": 1.4508, "AF": -0.94481 }

Java HashMap multiple keys with multiple values assigned flexible


Tag : java , By : Shane
Date : March 29 2020, 07:55 AM
Hope that helps I have a problem with my Java Code. I want to store multiple Values in one Key but I want to store them flexible. This means I read from a textfile and every line is one word. To store them, I want to build pairs of words. For example: , I think I'd be looking at something like
List l = hmap.get(line);
if (l != null) {
     l.add(line));
}else {
     l = new ArrayList<String>();
     l.add(line)
     hmap.put(line, l);
}

How to create several .csv files from several hashMap in Java?


Tag : java , By : user87225
Date : March 29 2020, 07:55 AM
wish of those help Create new FileWriter for every file in which you want to write. Because currently you are creating only 1 file.

JAVA HashMap 2D, cant get the right approach to make a 2D HashMap, i mean a HashMap into another HashMap


Tag : java , By : Jesenko Mehmedbasic
Date : March 29 2020, 07:55 AM
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