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Boolean A logical statement that evaluates to true or false. In some languages, true is interchangeable(可互换的) with the number 1 and false is interchan 阅读全文
2019年3月1日
摘要:
Operators These allow you to perform certain operations on your data. There are 3 basic types: Arithmetic Operators The binary operators used for arit 阅读全文
摘要:
Primitive Data Types Java has 8 primitive data types: byte, short, int, long, float, double, boolean, and char. For most challenges, you'll only need 阅读全文