#DayOne#,九九乘法表
2015-04-22 16:32
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下面给出两种实现打印九九乘法表的方法。
常用的方法
优化后的方法
常用的方法
//用两个for循环实现九九乘法表的打印 public void printTable1(){ for(int i=1;i<=9;i++){ for(int j=1;j<=i;j++){ System.out.print(i+" x "+j+" = "+i*j+" "); } System.out.println(); } }
优化后的方法
//用一个for循环实现九九乘法表的打印 public void printTable2(){ //利用for循环来控制行数 for(int i=1,j=1;j<=9;i++){ System.out.print(i+" x "+j+" = "+i*j+" "); //利用if来控制列数 if(i==j){ i=0; j++; System.out.println(); } } }
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