编辑代码

class test04 {  
	public static void main(String[] args) {
       dataprint(5);

	}
    public static void dataprint(int data)
    {
        for (int i = 1; i <= data; i++) { 
        for (int j = 0; j < i; j++) { 
            System.out.print(i+" "); 
        } 
         System.out.println(" "); 
       
 }
    }
}