当我在java中编码时,我必须读取一个文件并在java上写入
我有 C++ 代码
freopen("addin.txt","r",stdin); freopen("addin.txt","w",stdout);
我必须在java中转换这段代码我怎么能?
i have tried this in java.
int frw(){
File f1=new File("addin.txt","r");
File f2=new File("addout.txt","w");
FileInputStream fi=new FileInputStream(f1);
FileOutputStream fo=new FileOutputStream(f2);
a=s.nextInt(fi.read());
b=s.nextInt(fi.read());
fo.write(b);
}
this is code in c++ which i to convert into java
int main()
{
freopen("addin.txt","r",stdin);
freopen("addout.txt","w",stdout);
int a,b;
cin>>a>>b;
cout<<a+b;
return 0;
}