今开发者_StackOverflow中文版天，一位网民拍了昆凌和周先生一起弹琴的照片，照片中周先生穿着连脚裤萌，站起来弹琴，坐在长椅上看旁边的哥哥弹琴。
How can I call a class in Java, when the name of the class won\'t be known at compile time (such as if it were a plugin). For example, from a GUI, a开发者_运维问答 user selects a plugin (a Java class)
I\'m new to JasperReports. I\'m designing report using iReport. My requirement is I have two values (Fields) x,y to compare. If x < y then the data color for y should be changed to \'black\' &
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