hw5_7.java

JAVA 2面向对象程序设计(习题参考答案1-8).rar

public class hw5_7
{
   public static void main (String args[])
   {
      int num1,num2;
      System.out.println("程序运行结果如下");
      for(num1=1;num1<=5;num1++)
      {
         for(num2=1;num2<=num1;num2++)
         {
            System.out.print(num1);
         }
            System.out.println( );
      }
  }
}