两句java的英文翻译[SCJP题目里的]

[laixiaonian88]

1.By default, all integer variable types are signed是什么意思

2.In java all parameters are passed by value. In case of primitives, the copy of the variable is passed while case of object references, its the copy of the reference which is passed. When the argument is of primitive type, pass-by-value means that the method cannot change its value. When the argument is of reference type, pass-by-value means that the method cannot change the object reference, but can invoke the object's methods and modify the accessible variables within the object. 是什么意思

有几个词搞不很明白signed ,primitives,references,pass-by-value

[Camelh]

1.By default, all integer variable types are signed
默认情况下，所有的int变量都是有符号的
2.In java all parameters are passed by value. In case of primitives, the copy of the variable is passed while case of object references, its the copy of the reference which is passed. When the argument is of primitive type, pass-by-value means that the method cannot change its value. When the argument is of reference type, pass-by-value means that the method cannot change the object reference, but can invoke the object's methods and modify the accessible variables within the object
在java的所有参数传递都是值传递的，如果是原始类型（如int ，float，long等），变量的拷贝将会被传递；如果是对象引用，引用本身的拷贝将会被传递；当参数是原始类型；值传递意味着形参不能改变实参；如果参数是引用；值传递意味着，在方法中不能改变引用变量本身，但可以调用对象的方法来改变对象中可以访问的变量；

大概意思就是这样的，不一定很准确

[gefengxztg]

呵呵,几个单词
查查字典嘛