java: (1)find out three keywords (a)synchronized (b)implement (c)throws etc (2)which are not keywords (a)NULL (b)synchronize etc (3)two to three questions on legal array declaration (a)int a[][]=new int[3][3]; (b)int[] a[]=new int[3][3]; (c)int a[3][4]=new int[3][4];wrong (d)int[3][4] a=new int[3][4];wrong (e)int a[][]=new int[3][4]; (4)++i+++j is equivalent to (a)i+j+1 (b)i+j+2 (c)i+j (d)can’t be compiled(correct) (5)the content of the array after [...]
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