JAVA Day8

JavaDay8

循环结构

• while循环

• do-while循环

• for循环

package struct;
public class Day8 {
    public static void main(String[] args) {
        //练习2
        int a = 1;
        for (int i = 0; i <=1000; i++) {
            if(i%5==0){
                System.out.print(i+"\t");
            }
            if(i%(5*3)==0){
                System.out.println();
            }
        }
    }
}

public class Day8 {
    public static void main(String[] args) {
    //练习3(正三角)
        for (int i = 1; i <= 9; i++) {
            for (int k = 9; k > i; k--) {
                System.out.print("    ");
            }
            for (int j = 1; j <= i; j++) {
                System.out.print(i+"*"+j+"="+i*j+"\t");
            }System.out.println();
        }
    }
}

• 增强for循环

• break和continue