operators - What does << mean in java? -

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I do not know that & lt; & Lt; This means in Java, because I can not find it on Google, I'm totally lost!

The code in question is: 

  public int getRGB () {return ((red & lt; 16) 
 
 
 ) | Blue); 
 
 
 
 
 
 
 
 
 
 
 
 
 Itemprop = "Text"> 
 left shift of bits 
 
 If red == 4 (which is in binary: 00000100) then red & lt; & Lt; 16 will include sixteen-bit bits on your right, yield: 00000100000000000000000000 which is 262144 in decimal

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