Data conversion java
<pre><code>char c='c';
int i=10;
double d =50;
long l=30;
String s="Goodbye";
</code></pre>

<p>Are these statement valid?</p>

<pre><code>s+=i;
i+=s;
c+=s;
c=c+i;
</code></pre>

<p>Can someone explain the logic of converting data types </p>
