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To assign a value to a variable in Java you write:

<variable name> = <expression>;
Remember that = means assignment action, whereas == means equality relation.


distance = sqrt( dx*dx + dy*dy ); // calculate distance based on dx and dy
k = uniform_discr( 0, 10 ); // set k to a random integer between 0 and 10 inclusive
customer = null; // “forget” customer: reset customer variable to null (“nothing”)

The shortcuts for frequently used assignments can be executed as statements as well (see Arithmetic expressions), for example:

k++ ; //increment k by 1
b *= 2; // b = b*2
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