Java String Concatenation Operators / Chapter -3 /Operator & Assignments

 Java String Concatenation Operator

1. This (+) is the only overloaded operator in java.Sometimes it acts as "Arithmetic operators" and Sometimes it acts as "String Concatenation Operators".


2. If both arguments are number type then it acts as "Arithmetic Addition Operator".


3. If at least one argument is String type then (+)operators act as "String Concatenation Operators".

example 1:-
String a="javabychetan";
int b=10,c=20,d=30;
System.out.println(a+b+c+d);        o/p is              javabychetan102030
System.out.println(b+c+d+a);       o/p is               60javabychetan
System.out.println(b+c+a+d);       o/p is               30javabychetan30
System.out.println(b+a+c+d);       o/p is               10javabychetan2030

•   explanation of the first System.out.println(a+b+c+d);

javabychetan.com

•  explanation of the Second System.out.println(b+c+d+a);