用于數(shù)據(jù)處理的關(guān)鍵字：byte short int long float double char boolean

用于流程控制語(yǔ)句的關(guān)鍵字：if else switch case default while for break continue

方法、類型、變量的修飾的關(guān)鍵字：private public protected final static abstract synchronized

異常處理的關(guān)鍵字：try catch finally throw throws

對(duì)象相關(guān)的關(guān)鍵字：new extends implements class this super instance of(用于檢測(cè)構(gòu)造函數(shù)的 prototype 屬性是否出現(xiàn)在某個(gè)實(shí)例對(duì)象的原型鏈上)