"TCO_MAIN_Frame.java": cannot resolve symbol: constructor StackedBarChartDemo1 ()in class TCO_01.StackedBarChartDemo1 at line 833, column 37
"TCO_MAIN_Frame.java": JFrame() in javax.swing.JFrame is not defined in a public class or interface; cannot be accessed from outside package at line 833, column 37
wobei die Klasse StackedBarChartDemo1 public ist..
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