[英]How do I use variables from this constructor in other methods in Java?
So I have a constructor that looks like this 所以我有一个看起来像这样的构造函数
public Maze(String[] textmaze, int startRow, int startCol, int finishRow, int finishCol){
I want to access the variables startRow, startCol, finishRow, and finishCol however those variables can only be passed in as parameters from another class(which I can't modify). 我想访问变量startRow,startCol,finishRow和finishCol,但是这些变量只能作为参数从另一个类传递(我不能修改)。 So how would I use those variables from the constructor in another method? 那么,如何在另一个方法中使用构造函数中的那些变量呢?
You could use something like this: 您可以使用如下形式:
class Maze{
private int startRow, startCol, finishRow, finishCol;
public Maze(String[] textmaze, int startRow, int startCol, int finishRow, int finishCol){
this.startRow = startRow;
this.startCol = startCol;
this.finishRow = finishRow;
this.finishCol = finishCol;
}
private void someMethod(){
System.out.println(startRow);
}
}
You can save them to properties or fields. 您可以将它们保存到属性或字段。 Here's the documentation about properties . 这是有关properties的文档。
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