多组输入,一个整数(2~20),表示金字塔边的长度,即“*”的数量,,也表示输出行数。
针对每行输入,输出用“*”组成的金字塔,每个“*”后面有一个空格。
4
* * * * * * * * * *
5
* * * * * * * * * * * * * * *
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
while (in.hasNextInt()) {
int n = in.nextInt();
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if (j < n - i - 1) {
System.out.print(" "); //控制空格数即可
} else {
System.out.print("* ");
}
}
System.out.println();
}
}
in.close();
}
} import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
while (in.hasNextInt()) {
int n = in.nextInt();
for(int i = 1; i <= n; i++) {
//空格
for(int j = n; j > i; j--) {
System.out.print(" ");
}
//符号*
for(int l = 1; l <= i; l++) {
System.out.print("* ");
}
//换行
System.out.println();
}
}
}
}
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// 注意 hasNext 和 hasNextLine 的区别
while (in.hasNextInt()) { // 注意 while 处理多个 case
int n = in.nextInt();
for(int i=1;i<=n;i++){
for(int j=n-1;j>=i;j--){
System.out.print(" ");
}
for(int p=1;p<=i;p++){
System.out.print("* ");
}
System.out.println();
}
}
}
} import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
while(sc.hasNext()){
int x=sc.nextInt();
for(int i=1;i<=x;i++){
for(int j=1;j<=x-i;j++){
System.out.print(" ");
}
for(int k=1;k<=i;k++){
System.out.print("* ");
}
System.out.println();
}
}
}
} import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
int n = sc.nextInt();
for (int i = 1; i <= n; i++) {//hang
for (int j = n - i; j >= 1; j--) {
System.out.print(" ");
}
for (int m = 1; m <= i; m++) {
System.out.print("* ");
}
System.out.println();
}
}
}
} import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while(scanner.hasNext()){
int num = scanner.nextInt();
for(int i = 0;i < num;i++){
for(int j = num - i ;j > 1 ;j--){
System.out.print(" ");
}
for(int k = 0;k <= i;k++){
System.out.print("* ");
}
System.out.println("");
}
}
}
} import java.util.*;
public class Main{
public static void main(String love[]){
Scanner input=new Scanner(System.in);
while(input.hasNextInt()){
int n=input.nextInt();
for(int i=0;i<n;i++){
for(int k=n-i;k>1;k--){
System.out.print(" ");
}
for(int j=0;j<=i;j++){
System.out.print("*"+" ");
}
System.out.println();
}
}
input.close();
}
} import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while(sc.hasNextInt()){
int n = sc.nextInt();
for(int i = 1; i <= n; i++){
for(int j = 1; j <= n-i; j++){
System.out.print(" ");
}
for(int k = 1; k <= i; k++){
System.out.print("* ");
}
System.out.println();
}
}
}
} import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
Integer number = sc.nextInt();
for(int n = 1;n<=number;n++){
for(int s = number-n;s>0;s--){
System.out.print(" ");
}
for(int i = n;i>0;i--){
System.out.print("* ");
}
System.out.println("");
}
}
}
} import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
//接受数字输入
int n = sc.nextInt();
String temp = String.join("", Collections.nCopies(n+1, " "));
for (int i = 1; i <=n; i++) {
//输出n-i个空格" ",以及拼接字符串->在i个*中插入空格" "
//Collections.nCopies(i, "*") 是复制i-1个*,如i=3,就是***
//下面的String.join方法是在字符串空隙中插入指定字符串,如***,变成* * *
System.out.println(String.join("", Collections.nCopies(n-i, " "))+
String.join(" ", Collections.nCopies(i, "*"))+" ");
}
}
}
}