一.错误现象:当改变了jdk版本时,在编译java时,会遇到Unsupported major.minor version错误.jdk版本和stanford parser对应关系 JDK版本和Java编译器内部的版本号 J2SE 8 = 52,J2SE 7 = 51,J2SE 6.0 = 50,J2SE 5.0 = 49,JDK 1.4 = 48,JDK 1.3 = 47,JDK 1.2 = 46,JDK 1.1 = 45 Unsupported major.minor version 52.0…