練習1：

public class twoSum {
    public static void main(String[] args){
        for(int i = 1;i <= 100;i ++){
            System.out.println(i);
        }
    }
}

public class twoSum {
    public static void main(String[] args){
        int flag = 0 ;
        for(int i = 0;i < 25;i ++){
            int x = (int)(Math.random()*100);
            if(i > 0 ){
                if(x > flag) System.out.println(x + "大於" + flag);
                if(x == flag) System.out.println(x + "等於" + flag);
                if(x < flag) System.out.println(x + "小於" + flag);
            }
            flag = x;
        }
    }
}