“此”的问题在构造函数中 [英] Problem with "this" in constructor
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问题描述
错误获取
error getting
class.java:5: error: cannot find symbol
this.s = g;
class.java:6: error: cannot find symbol
this.f = d;
i意味着很奇怪它声明在课堂上?对吗?
我尝试了什么:
class Add {
// private int s;
// private int f;
public int a(int g,int d){
this.s = g;
this.f = d;
返回g + d;
}
public void main(String [] args){
add d = new Add();
System.out.print(da(4,5) );
}
}
i mean it weirdly it declaration is in there in class ?? right ?
What I have tried:
class Add{
// private int s;
// private int f;
public int a(int g,int d){
this.s = g;
this.f = d;
return g+d;
}
public void main(String[] args) {
Add d = new Add();
System.out.print(d.a(4,5));
}
}
推荐答案
取消注释类变量s和f(删除前导//)。
Uncomment the class variables s and f (remove the leading //).
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