Posted By

tactoth on 04/27/10

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command
line

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Last Edited at 04/27/10 02:52am

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Parse command line in java

/ Published in: Java

input: -width 123 -height 234 -minimized -visible
output map: {"-width":"123", "-height":"234", "-minimized":null, "-visible":null}

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public static void main(String[] args) throws Exception
	{
		// parse arguments
		Map<String, String> params = new HashMap<String, String>();
		for (int i = 0; i < args.length; i++) {
			String k = args[i], v = null;
			assert (k.startsWith("-"));
 
			// see if there's a value following
			int j = i + 1;
			if (j < args.length) {
				String _v = args[j];
				if (!_v.startsWith("-")) {
					v = _v;
					i++;
				}
			}
 
			params.put(k, v);
		}
	}