如何使用JAva中另一種方法創建的對象？

Question

嗨我想通過objectA和objectB，我創建從方法ListA()和ListB()到DoSomething方法，可有人請指導我如何做到這一點？

public static void main(String[] args) 
{ 
myclass test = new myclass(); 
test.ListA(args[0]); 
test.ListB(args[1]);    
test.DoSomething(objectA, objectB); 
} 

public void ListA(String aaa){ 
objectA = Sting[]; 
//other codes goes here... 
} 

public void ListB(String bbb){ 
objectB = Sting[]; 
//other codes goes here... 
} 

public static void DoSomething(List<String>objectA, List<String>objectB}{ 
//other codes goes here... 
} 

Answer 1

爲什麼不直接返回創建的對象與DoSomething函數一起使用？

嗨我試圖將方法ListA（）和列表B（）創建的objectA和objectB傳遞給DoSomething方法，有人可以請指導我如何做到這一點？

public static void main(String[] args) 
{ 
myclass test = new myclass(); 
List<String> objectA = test.ListA(args[0]); 
List<String> objectB = test.ListB(args[1]);   
test.DoSomething(objectA, objectB); 
} 

public List<String> ListA(String aaa){ 
List<String> generatedA; 
//Generate your object... 
return generatedA; 
} 

public List<String> ListB(String bbb){ 
List<String> generatedB; 
//Generate your object... 
return generatedB; 
} 

public static void DoSomething(List<String>objectA, List<String>objectB}{ 
//other codes goes here... 
} 

Answer 2

你會希望ListA和ListB方法返回它們的值，然後將那些到DoSomething方法。

初學者教程Java方法在這裏：homeandlearn 這裏：Java Doc

Answer 3

爲了能夠通過他們你要麼返回：

public static void main(String[] args) 
{ 
    myclass test = new myclass();  
    test.DoSomething(test.ListA(args[0]), test.ListB(args[1])); 
} 

public List<String> ListA(String aaa){ 
    objectA = String[]; 
    //other codes goes here... 
} 

public List<String> ListB(String bbb){ 
    objectB = String[]; 
    //other codes goes here... 
} 

public static void DoSomething(List<String>objectA, List<String>objectB}{ 
    //other codes goes here... 
} 

或使它們的成員：

List<String> objectA; 
List<String> objectB; 

public static void main(String[] args) 
{ 
myclass test = new myclass(); 
test.ListA(args[0]); 
test.ListB(args[1]);   
test.DoSomething(); 
} 

public List<String> ListA(String aaa){ 
this.objectA = Sting[]; 
//other codes goes here... 
} 

public List<String> ListB(String bbb){ 
this.objectB = String[]; 
//other codes goes here... 
} 

public static void DoSomething(}{ 
    this.objectA 
    this.objectB 
//other codes goes here... 
}