class MArray{ static void array1(){ int[][] a; a=new int[3][2]; System.out.println("a.length= "+a.length); for(int i=0; i<a.length; i++){ System.out.println(a[i].length); } } static void array2(){ int[][] a; a=new int[3][]; System.out.println("a.length= "+a.length); for(int i=0; i<a.length; i++){ a[i]=new int[i+1]; System.out.println(a[i].length); } } static void array3(){ int[] b=new int[0]; System.out.println(b.length); if(b!=null) System.out.println("not null!"); } public static void main(String[] args){ array1(); array2(); array3(); } }
$Id: toc.html,v 1.1 2000-07-01 21:53:21+09 kaiya Exp kaiya $