错误是
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The constructor MainFrame() is not visible at ruzs.BackBone.main(BackBone.java:23)
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The constructor MainFrame() is not visible at ruzs.BackBone.main(BackBone.java:23)
解决方案 »
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