刚抄袭他人的，JAVA新特性。哎.......

1. 自动装箱与拆箱 对应C# 例1.1 Integer i = 10; int j = i; 2. 更优化的for循环 对应就C#---foreach循环 例2.1 String[] names = {"BadBoy","GoodBoy","HappyGirl","sadGirl"}; for(String option: names) { System.out.println(option);

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