9x9乘法表
class Demo {
public static void main(String[] args) {
for(int x = 0;x <= 9; x++) {
for(int y = 1;y <= x; y++) {
System.out.print(y+"*"+x+"="+x*y+"\t");
}
System.out.println();
}
}
}
冒泡排序
public class BubbleSort{
public static void main(String[] args){
int score[] = {67, 69, 75, 87, 89, 90, 99, 100};
for (int i = 0; i < score.length -1; i++){//最多做n-1趟排序
for(int j = 0 ;j < score.length - i - 1; j++){//对当前无序区间score[0......length-i-1]进行排序(j的范围很关键，这个范围是在逐步缩小的)
if(score[j] < score[j + 1]){ //把小的值交换到后面
int temp = score[j];
score[j] = score[j + 1];
score[j + 1] = temp;
}
}
System.out.print("第" + (i + 1) + "次排序结果：");
for(int a = 0; a < score.length; a++){
System.out.print(score[a] + "\t");
}
System.out.println("");
}
System.out.print("最终排序结果：");
for(int a = 0; a < score.length; a++){
System.out.print(score[a] + "\t");
}
}
}
