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syntactic unit > symbol > operator > arithmetic operator > +
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+ comparison table
Subject use have syntax has definition have purpose be is a kind of is an instance of indicate
arithmetic operator   to perform basic arithmetic operations operator   
binary operatoran infix notation An operator that has 2 argumentsto perform a simple function of 1 to 3 arguments operator   
+an infix notation
operand1 + operand2
 to add two operands together or to perform string concatenationsaid to be an overloaded operator because it has two different meanings depending on the types of its operands 
  • + indicates string concatenation
  • if its operands have type String
  • otherwise + indicates addition
binary operatoraddition

Next arithmetic operator++    Uparithmetic operator, binary operator    Previous arithmetic operator*