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using namespace std;
#include<iostream>
#include<math.h>
class sophuc
{
	private:
		int a,b;
	public:
		sophuc()
		{
			a=b=0;
		}
		sophuc(int x,int y)
		{
			a=x;
			b=y;
		}
		friend istream& operator >>(istream& is,sophuc &p )
		{
			cout<<"nhap a:";
			is>>p.a;
			cout<<"nhap b:";
			is>>p.b;
			return is;
		}
		friend ostream& operator <<(ostream& os,sophuc p)
		{
			os<<"so phuc la:"<<p.a<<"+"<<p.b<<"i"<<endl;
			return os;
		}
		sophuc module(sophuc x)
		{
			float z;
			z=sqrt(x.a*x.a+x.b*x.b);
			return x;	
		}
		~sophuc()
		{
		}
};
main()
{
	sophuc p1,p2,c,d,x;
	cin>>p1;
    cout<<"\nso phuc 1:"<<p1;
    cout<<"\nmodule la:"<<p1.module();
    cin>>p2;
    cout<<"\nso phuc 2:"<<p2;
    cout<<"\nmodule la:"<<p2.module();
    return 0;
 
};

Main.java:1: error: class, interface, or enum expected
using namespace std;
^
Main.java:2: error: illegal character: '#'
#include<iostream>
^
Main.java:2: error: class, interface, or enum expected
#include<iostream>
        ^
Main.java:3: error: illegal character: '#'
#include<math.h>
^
Main.java:6: error: illegal start of type
	private:
	       ^
Main.java:6: error: ';' expected
	private:
	        ^
Main.java:7: error: <identifier> expected
		int a,b;
		     ^
Main.java:8: error: illegal start of type
	public:
	      ^
Main.java:8: error: ';' expected
	public:
	       ^
Main.java:9: error: illegal start of type
		sophuc()
		      ^
Main.java:9: error: <identifier> expected
		sophuc()
		       ^
Main.java:9: error: ';' expected
		sophuc()
		        ^
Main.java:11: error: <identifier> expected
			a=b=0;
			 ^
Main.java:13: error: class, interface, or enum expected
		sophuc(int x,int y)
		^
Main.java:16: error: class, interface, or enum expected
			b=y;
			^
Main.java:17: error: class, interface, or enum expected
		}
		^
Main.java:21: error: class, interface, or enum expected
			is>>p.a;
			^
Main.java:22: error: class, interface, or enum expected
			cout<<"nhap b:";
			^
Main.java:23: error: class, interface, or enum expected
			is>>p.b;
			^
Main.java:24: error: class, interface, or enum expected
			return is;
			^
Main.java:25: error: class, interface, or enum expected
		}
		^
Main.java:29: error: class, interface, or enum expected
			return os;
			^
Main.java:30: error: class, interface, or enum expected
		}
		^
Main.java:34: error: class, interface, or enum expected
			z=sqrt(x.a*x.a+x.b*x.b);
			^
Main.java:35: error: class, interface, or enum expected
			return x;	
			^
Main.java:36: error: class, interface, or enum expected
		}
		^
Main.java:41: error: class, interface, or enum expected
main()
^
Main.java:44: error: class, interface, or enum expected
	cin>>p1;
	^
Main.java:45: error: class, interface, or enum expected
    cout<<"\nso phuc 1:"<<p1;
    ^
Main.java:46: error: class, interface, or enum expected
    cout<<"\nmodule la:"<<p1.module();
    ^
Main.java:47: error: class, interface, or enum expected
    cin>>p2;
    ^
Main.java:48: error: class, interface, or enum expected
    cout<<"\nso phuc 2:"<<p2;
    ^
Main.java:49: error: class, interface, or enum expected
    cout<<"\nmodule la:"<<p2.module();
    ^
Main.java:50: error: class, interface, or enum expected
    return 0;
    ^
Main.java:52: error: class, interface, or enum expected
};
^
35 errors

Standard output is empty