下列代码段执行结果为( )。
public class Test

public static void main(String args[])

System.out.println("abc"+3+4+5)；
System.out.println(3+4+5+"abc")；

A．FlowLayout(FlowLayout.RIGHT,20,40)
B．FlowLayout(FlowLayout.LEFT)
C．FlowLayout()
D．FlowLayout(20,40)

A．showInputDialog()
B．InputDialog()
C．showMessageDialog()
D．showOptionDialog()