九九乘法表 java

public class C4 {
    public static void main(String[] args) {
  //99乘法表
        for (int i = 1; i < 10 ; i++) {
            for (int j = 1; j <=i; j++) {
                int sum  = i *j;
                System.out.print(j+"*"+i+"="+sum+" ");
            }
            System.out.println("");
        }
    }
}