public class Test {

	public static void main(String[] args) {
		System.out.println("********************九九乘法表********************");
		
		for (int i = 1; i <= 9; i++) {
			for (int j = 1; j <= i; j++) {
				System.out.print(j+"x"+i+"="+i*j+"\t");// \t是一個tab的縮排
			}
			System.out.println();//列印換行
		}
		
	}
}
 

最後附上執行結果：

********************九九乘法表********************
1x1=1
1x2=2 2x2=4
1x3=3 2x3=6 3x3=9
1x4=4 2x4=8 3x4=12 4x4=16
1x5=5 2x5=10 3x5=15 4x5=20 5x5=25
1x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=36
1x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=49
1x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=64
1x9=9