java myeclipse The type java.lang.CharSequence cannot be resolved. It is indirectly referen
myeclipseThetypejava.lang.CharSequencecannotberesolved.Itisindirectlyreferen因为jdk和jre版本不一样导致的解决方法,右击项目,选择propreties->javabuildpath->Libraries->AddLibrary->JRESystemLibrary,Executionenvironment和alterna