问题描述 求大神帮忙讲解这段代码怎么看呢 (本问题来自课本java有理数的类封装)在一个类中有 Rational add(Rational r){ int a=r.getNumerator(); int b=r.getDenominator(); int newNumerator=numerator*b+denominator*a; int newDenominator=denominator*b; Rational result=new Rational(newNumerator,newDen
问题描述 调用微信静默授权接口时报错,错误信息如下求大神帮忙看看什么问题 javax.net.ssl.SSLException: java.security.ProviderException: java.security.KeyException at sun.security.ssl.Alerts.getSSLException(Alerts.java:208) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1916)