写一个类，名为Animal，该类有两个私有属性，name(代表动物的名字)，和legs(代表动物的腿的条数)；

[{"title":"（ 11 个子文件 6KB ） 写一个类，名为Animal，该类有两个私有属性，name(代表动物的名字)，和legs(代表动物的腿的条数)；","children":[{"title":"Second-1","children":[{"title":".project <span style='color:#111;'> 384B </span>","children":null,"spread":false},{"title":"src","children":[{"title":"com","children":[{"title":"xju","children":[{"title":"Bird.java <span style='color:#111;'> 552B </span>","children":null,"spread":false},{"title":"Zoo.java <span style='color:#111;'> 431B </span>","children":null,"spread":false},{"title":"Fish.java <span style='color:#111;'> 513B </span>","children":null,"spread":false},{"title":"Animal.java <span style='color:#111;'> 1.15KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true},{"title":".settings","children":[{"title":"org.eclipse.jdt.core.prefs <span style='color:#111;'> 598B </span>","children":null,"spread":false}],"spread":true},{"title":".classpath <span style='color:#111;'> 301B </span>","children":null,"spread":false},{"title":"bin","children":[{"title":"com","children":[{"title":"xju","children":[{"title":"Fish.class <span style='color:#111;'> 983B </span>","children":null,"spread":false},{"title":"Animal.class <span style='color:#111;'> 1.64KB </span>","children":null,"spread":false},{"title":"Zoo.class <span style='color:#111;'> 826B </span>","children":null,"spread":false},{"title":"Bird.class <span style='color:#111;'> 1001B </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}],"spread":true}],"spread":true}]