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Tip of the Day
Dec 5, 2018

WEBINAR:

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Building the Right Environment to Support AI, Machine Learning and Deep Learning


Using the String Concatenation Operator in Java

The plus symbol can be used as three distinct operators in Java:

  • as the unary Plus operator, if there is no operand before the +
  • as the binary Addition operator, if there are two numeric operands
  • the binary Concatenation operator, if there are two operands, and at least one of them is a String

In a simple example, the Concatenation operator joins two strings to give a third string.

String s1 = "a String";
String s2 = "This is " + s1; // s2 contains "This is a String"
Octavia Anghel
 
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