Programming-Idioms

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2015-09-03, 20:57:53

2015-09-04, 19:42:10

Idiom #8 Initialize a new Map (associative array)

Declare a new map object x, and provide some (key, value) pairs as initial content.

Declare a new map object x, and provide some (key, value) pairs as initial content.

import java.util.Map;
import java.util.HashMap;

import java.util.Map;
import java.util.HashMap;

Map<String,Integer> x = new HashMap<String,Integer>();
x.put("one", 1);
x.put("two", 2);

Map<String,Integer> x = new HashMap<>();
x.put("one", 1);
x.put("two", 2);

http://ideone.com/iq8mh4

http://ideone.com/iq8mh4

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