下面兩種數(shù)組的拷貝,哪個(gè)更有效率() String[] from=new String[10]; String to=new String[10];
A.A B.B
A.char chr[]=new char[3]{’A’,’B’,’C’} B.char chr[]=new char[3] C.char chr[]={’A’,’B’,’C’} D.char [][]chr=new char[10][]
請(qǐng)閱讀下圖代碼,下列說法正確的是()
A.輸出"0,1,2,0,0," B.輸出"0,1,2," C.運(yùn)行時(shí)拋異常