JDK 版本对照 versions

JDK version和class file version(Class编译版本号)对应关系

    JDK 17 = 61,
    JDK 16 = 60,
    JDK 15 = 59,
    JDK 14 = 58,
    JDK 13 = 57,
    JDK 12 = 56,
    JDK 11 = 55,
    JDK 10 = 54,
    JDK 9 = 53,
    JDK 8 = 52,
    JDK 7 = 51,
    JDK 6.0 = 50,
    JDK 5.0 = 49,
    JDK 1.4 = 48,
    JDK 1.3 = 47,
    JDK 1.2 = 46,
    JDK 1.1 = 45.0-45.6
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原文链接：https://blog.csdn.net/h4241778/article/details/128532381