8 wrapper classes for 8 basic data typesBYTE byteShort Shortint IntegerLong Longfloat floatDouble DoubleChar CharacterBoolean BooleanInteger a=127; Integer b= 127; // The virtual machine is automatically boxed when the special processing, -127~128 the following automatically take theSystem.out.println (a==b); result is trueIf it is an integer a=128; Integer b=128;System.out.println (a==b); The result is falseSystem.out.println (a.equals (b)); The comparison is the content, because the replicatio
= = dtgree.rows[yw]["Jicode"]. ToString ()){Device background color is greenBn[i]. BackColor = Color.green;Break}}Determine if it is in servicefor (int r = 0; r {if (Bn[i]. Text = = dtred.rows[r]["Jicode"]. ToString ()){Device background color is redBn[i]. BackColor = color.red;Blist. ADD (Bn[i]);Break}}}Bn[i]. FlatStyle = System.Windows.Forms.FlatStyle.Flat;Bn[i]. MouseHover + = new System.EventHandler (this.buttonall_mousehove);P.controls.add (Bn[i]);}#region Traverse all the buttons on the f
Some time ago in an SSH project, using sequence in Oracle as the primary key generation strategy for the object table, the step size of the sequence is configured in the database, but when the test is run, the step size of the primary key ID is found to be 50 per increment.Strange outside Google, find the following solution, when the ID of the entity class annotated, add a " allocationSize=1 ", for example, the primary key of the table El is configured with a sequence called " EL_SEQ ", then the
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