//am4.java -- @CopyLeft by tsaiwn@csie.nctu.edu.tw public class am4 extends am0 { public static void main(String[ ] args) { for(int i=1; i<=10; ++i) print("====="); println(""); for(int i=1; i<=9; ++i) { printf(i, 5); printf(": "); for(int j=1; j<=9; j++) { printf(i*j, 5); } println(""); } // for i System.exit(0); } // main public static void printf(long n, int w) { long tmp = 10; // print n as w columns long nabs = n; if(n<0) {nabs = -nabs; --w; } // ensure positive for(tmp=1;tmp <= nabs; --w) tmp *= 10; for(; --w > 0;) printf(" "); printf(""+n); } }