Java基础语法2
转载请注明出处：https://blog.csdn.net/Mercury_Lc/article/details/82800547 作者：Mercury_Lc SDUT Java基础语法练习2
I C语言实验——打印菱形（SDUT 1174）
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n;
n = sc.nextInt();
for(int i = 0; i < n; i ++)
{
for(int j = 0; j < n - i - 1; j ++)System.out.print(" ");
for(int j = 0; j < i + 1; j ++)System.out.print('*');
for(int j = 0; j < i; j ++)System.out.print('*');
System.out.println("");
}
for(int i = n - 2; i >= 0; i --)
{
for(int j = 0; j < n - i - 1; j ++)System.out.print(" ");
for(int j = i; j >= 0 ; j --)System.out.print('*');
for(int j = i; j >= 1; j --)System.out.print('*');
if(i != 0 )System.out.println("");
}
}
}C语言实验——打印数字图形（SDUT 1179）
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n;
n = sc.nextInt();
for(int i = 0; i < n; i ++)
{
for(int j = 0; j < n - i - 1; j ++)System.out.print(" ");
for(int j = 0; j < i + 1; j ++)System.out.print(j + 1);
for(int j = 0; j < i; j ++)System.out.print(i - j);
System.out.println("");
}
for(int i = n - 2; i >= 0; i --)
{
for(int j = 0; j < n - i - 1; j ++)System.out.print(" ");
for(int j = i; j >= 0 ; j --)System.out.print(i - j + 1);
for(int j = i; j >= 1; j --)System.out.print(j);
if(i != 0 )System.out.println("");
}
}
}k 做乘法（SDUT 2249）
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n;
n = sc.nextInt();
for (int i = 1; i <= n; i++) {
System.out.println(n + "*" + i + "=" + n * i);
}
}
}L 期末考试之分等级（SDUT 2251）
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n, x;
n = sc.nextInt();
int a, b, c, d, e;
a = b = c = d = e = 0;
for (int i = 0; i < n; i++) {
x = sc.nextInt();
if (x >= 90)a++;
else if (x < 90 && x >= 80)b++;
else if (x < 80 && x >= 70)c++;
else if (x < 70 && x >= 60)d++;
else if (x < 60) e++;
}
System.out.print('A' + " " + a + "\n" + 'B' + " " + b + "\n" + 'C' + " " + c + "\n" + 'D' + " " + d + "\n" + 'E'
+ " " + e + "\n");
}
}M C语言实验——矩阵转置（SDUT 1164）
import java.util.Scanner;
import java.util.Arrays;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n;
int a[][] = new int[1000][1000];
n = sc.nextInt();
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
a[i][j] = sc.nextInt();
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if (j != n - 1)
System.out.print(a[j][i] + " ");
else
System.out.print(a[j][i]);
}
System.out.println("");
}
}
}N C语言实验——矩阵下三角元素之和（SDUT 1172）
package ll;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int a[][] = new int[100][100];
int n;
n = sc.nextInt();
int sum = 0;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n; j++) {
a[i][j] = sc.nextInt();
if (i >= j)
sum += a[i][j];
}
}
System.out.println(sum);
}
}本文参与 腾讯云自媒体同步曝光计划，分享自作者个人站点/博客。
原始发表：2018-09-21，如有侵权请联系 cloudcommunity@tencent.com 删除
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