import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Map;
public class TestTokenReplacement {
public static void main(String[] args) {
Map<String, String> map = new HashMap<>();
String message = "this/is/{bad}";
map.put("bad", "good");
System.out.println(MessageFormat.format(message, map.get("bad")));
}
}
Expected output is : this/is/good How can get to format the string to replace the string tokens from the Map?
You can use String.format() if you do not want to import an additional class like this
String message = "this/is/%s";
String.format(message, map.get("bad"));
Here you will define the variables you want to replace by using %s.
You can also do it using MessageFormat, but you have to identify your variables with the index of the argument. i.e:
Map<String, String> map = new HashMap<>();
String message = "this/is/{0}";
map.put("bad", "good");
System.out.println(MessageFormat.format(message, map.get("bad")));
Output
this/is/good
String message = "this/is/{0}";
System.out.println(MessageFormat.format(message, map.get("bad")));
Replace the {bad} with an index i.e 0. If you look at the syntax for format, it is variable argument. Each number corresponds to argument that follows that pattern.
Map<String, String> map = new HashMap<>();
String message = "this/is/{0}/{1}";
map.put("bad", "good");
System.out.println(MessageFormat.format(message, map.get("bad"),"sample"));
Also, if you want to use it exactly the way you have used, try using. MapFormat.format(text, map)
