this.getKeyStates()&GameCanvas.RIGHT_PRESSED)!=0

if (this.getKeyStates()==GameCanvas.LEFT_PRESSED){
     System.out.println("左侧''");
    }
                  if ((this.getKeyStates()&GameCanvas.RIGHT_PRESSED)!=0){
                   System.out.println("right侧''");
    }

---------------------------------

 if ((this.getKeyStates()&GameCanvas.RIGHT_PRESSED)!=0) 这句是什么意思呢

还是不能理解，可以解一下吗

意思是this.getKeyStates()    与    GameCanvas.RIGHT_PRESSED    都不等于0