Program for Compound Operator.

03 Java Operators.
Program for Compound Operator:

//CompoundOperator.java 

class CompoundOperator
 {
public static void main(String[] args)
{
int a = 10;
int b = a + 10;
int c = a += 10;

System.out.println(a);
System.out.println(b);
System.out.println(c);

int a = 10;

a += 10;
=> a = a + 10;
=> a = 10 + 10;
System.out.println(a);//20

a += 'a';

a = a + 'a';
a = 10 + 'a';
a = 10 + 97;
a = 107;

System.out.println(a);//107

a += "a";

a = a + "a";
a = 10 + "a";
a = "10" + "a";
a = "10a";

//on string we can only apply += operator,
//+= operator is also overloaded
String s = "a";
s += "b"; //=> s = s + "b";
System.out.println(s);//ab

s += 10;
System.out.println(s);//ab10

//s -= 10;//=> s = s - 10;
//System.out.println(s);

s += 10 - 20; //=> s = s + (10-20);
System.out.println(s);
}
          }

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