下列程序的输出结果是 classA{ int i,j; A(int i,int j) { this.i=i; this.j=j; } void print( ) { System.out.println('i='+i+''+'j='+j) } class B extends A{ int in; B (int i,int j,int m){ super(a,B) ; this.m=m; } void print( ) { Sytem.out.println('m+'+m);} } class C { public static void main (strang argsⅡ) { B b:new B(1,2,3); b.print( ); } }