online compiler and debugger for c/c++

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Source Code   
/****************************************************************************** Welcome to GDB Online. GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl, C#, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog. Code, Compile, Run and Debug online from anywhere in world. *******************************************************************************/ public class Main { String _name; int _roll; float _marks; Main(String name, int roll,float marks) { this._name=name; this._roll=roll; this._marks=marks; } public String toString() { return "Name: "+this._name+"\n"+"Roll: "+this._roll+"\n"+"Marks: "+this._marks; } public static void main(String[] args) { Main m1=new Main("chandan",1,95.05F); System.out.println(m1.toString()); } }

Compiling Program...

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