version code name release date
jdk 1.1.4 sparkler sept 12, 1997
jdk 1.1.5 pumpkin dec 3, 1997
jdk 1.1.6 abigail april 24, 1998
jdk 1.1.7 brutus sept 28, 1998
jdk 1.1.8 chelsea april 8, 1999
j2se 1.2 playground dec 4, 1998
j2se 1.2.1 (none) march 30, 1999
j2se 1.2.2 cricket july 8, 1999
j2se 1.3 kestrel may 8, 2000
j2se 1.3.1 ladybird may 17, 2001
j2se 1.4.0 merlin feb 13, 2002
j2se 1.4.1 hopper sept 16, 2002
j2se 1.4.2 mantis june 26, 2003
j2se 5.0 (1.5.0) tiger sept 29, 2004
j2se 6.0 (1.6.0) mustang not yet released
j2se 7.0 (1.7.0) dolphin not yet released
cricket 蟋蟀
kestrel 茶隼
ladybird 瓢蟲
merlin 灰背隼
hopper 跳蚤
mantis 螳螂
tiger 虎
mustang 野馬
dolphin 海豚
70 爬樓梯遞迴和動態規劃java版題解
分析 爬到n,可以是從n 1級樓梯一次爬上來，也可以是從n 2級一次走兩步上來 不能從n 2走一步再走一步，因為走一步就會去到n 1級，重複 所以有公式f n f n 1 f n 2 遞推解 class solution return dbnum n 動態規劃 class solution if n...