99乘法表 java for循环

 public static void main(String[] args) {
        //0-100的奇数和偶数和
        int jsum=0;
        int osum=0;
        for (int i = 0; i < 100; i++) {
            if (i%2!=0) {
                jsum += i;

            }else{
                osum+=i;
            }
        }
        System.out.println("奇数和："+jsum);
        System.out.println("偶数和："+osum);
        System.out.println("============================");
         //能被5整除   输出形式3行
        for (int i = 0; i < 1000; i++) {
            if (i%5==0){
                System.out.print(i+"\t");
            }
            if (i%(5*3)==0){//每行
                System.out.println();
            }
            //System.out.println(); 会换行
           // System.out.print();不换行
        }


        System.out.println("\n"+"==========================");
        //打印99乘法表
        for (int j = 1; j<= 9; j++) {
            for (int i = 1; i <= j; i++) {
                System.out.print(j+"*"+i+"="+(j*i)+"\t");//不换行
            }
            System.out.println();//换行
        }

        System.out.println("\n"+"==========================");
        int num=0;
        while (num<100){
            num++;
            if (num%10==0){//是10的倍数
                System.out.println();
                continue;//跳出本次循环
            }
            System.out.print(num);
        }
        System.out.println("\n"+"==========================");
        //打印三角形
        for (int i =1; i <=5; i++) {
         //先打印空白的地方
            for (int j =5;j>=i;j--){
                System.out.print(" ");//不换行
            }
            //左边的小星星
            for (int j =1;j<=i;j++){
                System.out.print("*");//不换行
            }
            //右边的小星星
            for (int j =1;j