Addition of two numbers

Question

class Test
{
public static void main(String args[])
{
String a="6",b="3",c;
c=a+b;
System.out.print(c);
}
}

when i am using String. it is not showing any error, but when i changed it to char, it is showing error.

why???

Answer 1

Because char stands for a char. Only 1. if you sums 2 char, it does not enter in other char, because the result is 2 char.

char a = "X";
char b ="Y";

print(a+b);// this shows: XY.

You can sum 2 chars (char a="x", b="y") and add it to String c = a + b;