筆試題 簡單的兩道筆試題（1、打印楊輝三角；2、三個數排序）
1、打印楊輝三角

import java.util.Scanner; public class MyYanghuiTriangle {public static void main(String[] args) {Scanner scan = new Scanner(System.in);int row = scan.nextInt();int[][] nums = new int[row][];for (int i = 0; i < nums.length; i++) {nums[i] = new int[i + 1];for (int s = 0; s < nums.length - 1 - i; s++) {System.out.print(" ");}for (int j = 0; j < nums[i].length; j++) {if (j == 0 || j == nums[i].length - 1) {nums[i][j] = 1;} else {nums[i][j] = nums[i-1][j] + nums[i - 1][j - 1];}System.out.printf("%4d", nums[i][j]);}System.out.println();}scan.close();} }

2、三個數排序(輸入3個數a,b,c,按大小順序輸出。)

import java.util.Scanner; public class ThreeSort {public static void main(String[] args) {Scanner scan = new Scanner(System.in);int a = scan.nextInt();int b = scan.nextInt();int c = scan.nextInt();if(a<b) {int temp = a;a = b;b = temp;}if(a<c) {int temp = a;a = c;c = temp;}if(b<c) {int temp = b;b = c;c = temp;}scan.close();System.out.print("從大到小的順序輸出:");System.out.println(a+" "+b+" "+c);} }

轉載于:https://www.cnblogs.com/hglibin/p/9469404.html

總結

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