java基础for循环学习之打印九九乘法表
public class TabNxn{
public static void main(String[] args){
for( int line = 1 ; line <=9;line ++){
for( int colum = 1; colum <= line; colum++){
//String.format()方法的使用,字符串格式化
String str = String.format(" %d * %d = %d ",colum, line, line*colum);
System.out.print(str);
}
System.out.println();
}
}
}