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#include<iostream>
using std::cout;
using std::endl;
 
void copy1(char*, const char*);
void copy2(char*, const char*);
int main()
{
    char string1[10];
    char string2="Hello";
    char string3[10];
    char string4="Goodbye";
 
    copy1(string2, string1); //copy string1 into string2
    cout<<"string1="<<string1<<endl;
    copy2(string4, string3); //copy string3 into string4
    cout<<"string3="<<string3<<endl;
    return 0;
}
void copy1(char*s2, const char*s1)
{
    for(int i=0; (s1[i]=s2[i])!='\0',i++);
}
void copy2(char*s2, const char*s1)
{
    for(;(*s2=*s1)!='\0'; s1++, s2++);
}

Main.java:1: error: illegal character: '#'
#include<iostream>
^
Main.java:1: error: class, interface, or enum expected
#include<iostream>
        ^
Main.java:3: error: class, interface, or enum expected
using std::endl;
^
Main.java:5: error: class, interface, or enum expected
void copy1(char*, const char*);
^
Main.java:6: error: class, interface, or enum expected
void copy2(char*, const char*);
^
Main.java:7: error: class, interface, or enum expected
int main()
^
Main.java:10: error: class, interface, or enum expected
    char string2="Hello";
    ^
Main.java:11: error: class, interface, or enum expected
    char string3[10];
    ^
Main.java:12: error: class, interface, or enum expected
    char string4="Goodbye";
    ^
Main.java:14: error: class, interface, or enum expected
    copy1(string2, string1); //copy string1 into string2
    ^
Main.java:15: error: class, interface, or enum expected
    cout<<"string1="<<string1<<endl;
    ^
Main.java:16: error: class, interface, or enum expected
    copy2(string4, string3); //copy string3 into string4
    ^
Main.java:17: error: class, interface, or enum expected
    cout<<"string3="<<string3<<endl;
    ^
Main.java:18: error: class, interface, or enum expected
    return 0;
    ^
Main.java:19: error: class, interface, or enum expected
}
^
Main.java:22: error: class, interface, or enum expected
    for(int i=0; (s1[i]=s2[i])!='\0',i++);
                 ^
Main.java:23: error: class, interface, or enum expected
}
^
Main.java:26: error: class, interface, or enum expected
    for(;(*s2=*s1)!='\0'; s1++, s2++);
         ^
Main.java:26: error: class, interface, or enum expected
    for(;(*s2=*s1)!='\0'; s1++, s2++);
                          ^
Main.java:27: error: class, interface, or enum expected
}
^
20 errors

Standard output is empty