optaplanner-examples/src/main/java/org/optaplanner/examples/common/swingui/timetable/TimeTablePanel.java
public void defineColumnHeaderByKey(HeaderColumnKey xObject) {
        int x = layout.addColumn();
        xMap.put(xObject, x);
    }
public void defineColumnHeaderByKey(HeaderColumnKey xObject) {
        int x = layout.addColumn();
        xMap.put(xObject, x);
    }
public void defineColumnHeaderByKey ( HeaderColumnKey xObject ) { int x = layout . addColumn ( ) ; xMap . put ( xObject , x ) ; }
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