public static void print(int n) { int i = 1 ; int row = 1; while(i <= n) { for (int j=0; j < row; j++) { System.out.print(i++); System.out.print(" "); if (i > n) { break; } } System.out.println(); row++; } }
import java.io.*; import java.util.*; public class printtest { public int num; public void printnum() { int count=0; int row=1; while(count<=num) { for(int i=0;i<row;i++) { if(count<num) { System.out.print(count+1); System.out.print(" "); } count++; } row++; System.out.println(); } }
public static void main(String[] args) { printtest a=new printtest(); Scanner cin=new Scanner(System.in); System.out.println("请输入数据:"); int s=cin.nextInt(); a.num=s; System.out.println("打印效果如下:"); a.printnum(); }}
import java.io.*; public class shu { public static void main(String[] args)throws IOException { BufferedReader bin = new BufferedReader(new InputStreamReader(System.in)); String str = bin.readLine(); int n = Integer.parseInt(str); shuchu(n); } public static void shuchu(int n) { int i=1,j,x=1; boolean flag = true; while(flag) { for(j=i;j>0;j--) { if(x<=n) { System.out.print(x); x++; } else flag=false; } i++; System.out.println(); } } }
写了两个,第二个可能会更难理解一些,呵呵。public class Test { public static void main(String[] args) { final int N = 8; for(int i = 1, m = 0, n = 1; i <= N; i++, n++) { System.out.printf("%-2d", i); if(n == m + 1) { System.out.println(); m = n; n = 0; } } } }public class Test { public static void main(String[] args) { final int N = 8; for(int i = 1; i <= N; i++) { System.out.printf("%-2d ", i); if((Math.sqrt(1 + 8 * i) - 1) % 2 == 0) { System.out.println(); } } } }
我也来写了一个,哈哈 public class Out { public static void main(String[] args) { Out out = new Out(); out.print(20); } public void print(int N){ for(int i=1,count=0,n=1;i<=N;i++){ System.out.print(i+"\t"); count++; if(count==n){ System.out.print("\n"); n++; count=0; } } } }
我也来写了一个,哈哈 public class Out { public static void main(String[] args) { Out out = new Out(); out.print(20); } public void print(int N){ for(int i=1,count=0,n=1;i<=N;i++){ System.out.print(i+"\t"); count++; if(count==n){ System.out.print("\n"); n++; count=0; } } } }
public class Test { public void fun(int n) { int m = 1; int i = 1; while (i <= n) { for (int j = 1; j <= m; j++, i++) { System.out.print(i); } m++; System.out.println(); } } public static void main(String args[]) { new Test().fun(10); } }
上面的有点问题 public class Test { public void fun(int n) { int m = 1; int i = 1; while (i <= n) { for (int j = 1; j <= m; j++, i++) { if(i > n) return; System.out.print(i); } m++; System.out.println(); } } public static void main(String args[]) { new Test().fun(11); } }
public class PrintNum{ public static void main(String[] args) { int n; n = 8;//这个数随便由你设你设 for (int i = 1, k = 1; i < n; i++) { for (int j = 0; j < i; j++) { if (k > n) break; System.out.print((k++) + " "); } System.out.println(); } return; } }
//刚在记事本里写的 测试过了 能通过, import java.util.*; public class Q{ public static void main(String args[]){
Scanner s=new Scanner(System.in); System.out.print("Please input the number:"); int number=s.nextInt(); for(int i=0;i<number;i++) { int n=i*(i-1)/2+1; if(n>number){break;} for(int j=0;j<i;j++) { int num=i*(i-1)/2+1+j; if(num>number){break;} System.out.print(num); } System.out.println(); } } }
import java.util.Scanner; import static java.lang.System.out;public class Main { public static void main(String[] args) { Scanner cin = new Scanner(System.in); int n = cin.nextInt(); int line = 1; for (int i = 1; i <= n; i++) { out.print(i + " "); if (line * (line + 1) / 2 == i) { out.println(); line++; } } }}
mod N,求出行数J,再从0到J 每行打印i+1个数。
import java.util.*; public class PrintNumber { public static void main(String[] args){ System.out.println("请输入最大数:"); Scanner scanner=new Scanner(System.in); //从键盘输入一个数 int endNum=scanner.nextInt(); //获取该整数 int count=1; //记录该行的个数的计数器 int rowNum=1; //记录第几行(行号) for(int i=1;i<=endNum;i++){ System.out.print(i+"\t"); //输出从1到输入的那个数 if(rowNum==count){ //(1)1.当行号和该行的个数相等时, System.out.println(); //2.输出换行, rowNum++; //3.行号加1(即变成下一行的行号) count=1; //4.计数器重新从1开始计数 }else{ //(2)当行号和该行的个数不相等时(说明该行的个数小于行号),计数器加1 count++; } } } }本人测试过了,并加了注释,希望楼主能理解!
import java.util.Scanner; import static java.lang.System.out;public class Main { public static void main(String[] args) { Scanner cin = new Scanner(System.in); int n = cin.nextInt(); int line = 1; for (int i = 1; i <= n; i++) { out.print(i + " "); if (line * (line + 1) / 2 == i) { out.println(); line++; } } }
我也贴个~ private void count(){ int num = 100;//需要打印的数字 int row = 1; int maxVue = 1; while(true){ for(int i=0;i<row;i++){
public static void print(int n)
{
int i = 1 ;
int row = 1;
while(i <= n)
{
for (int j=0; j < row; j++)
{
System.out.print(i++);
System.out.print(" ");
if (i > n)
{
break;
}
}
System.out.println();
row++;
}
}
import java.util.*;
public class printtest {
public int num;
public void printnum()
{ int count=0;
int row=1;
while(count<=num)
{
for(int i=0;i<row;i++)
{ if(count<num)
{
System.out.print(count+1);
System.out.print(" ");
}
count++;
}
row++;
System.out.println();
}
}
public static void main(String[] args) {
printtest a=new printtest();
Scanner cin=new Scanner(System.in);
System.out.println("请输入数据:");
int s=cin.nextInt();
a.num=s;
System.out.println("打印效果如下:");
a.printnum(); }}
import java.io.*;
public class shu
{
public static void main(String[] args)throws IOException
{
BufferedReader bin = new BufferedReader(new InputStreamReader(System.in));
String str = bin.readLine();
int n = Integer.parseInt(str);
shuchu(n);
}
public static void shuchu(int n)
{
int i=1,j,x=1;
boolean flag = true;
while(flag)
{
for(j=i;j>0;j--)
{
if(x<=n)
{
System.out.print(x);
x++;
}
else
flag=false;
}
i++;
System.out.println();
}
}
}
public static void main(String[] args) {
final int N = 8;
for(int i = 1, m = 0, n = 1; i <= N; i++, n++) {
System.out.printf("%-2d", i);
if(n == m + 1) {
System.out.println();
m = n;
n = 0;
}
}
}
}public class Test {
public static void main(String[] args) {
final int N = 8;
for(int i = 1; i <= N; i++) {
System.out.printf("%-2d ", i);
if((Math.sqrt(1 + 8 * i) - 1) % 2 == 0) {
System.out.println();
}
}
}
}
画蛇添足,让打印结果好看点:// System.out.printf("%-2d ", i);
System.out.printf("%-"+((N+"").length()+1)+"d",i);
public class Out {
public static void main(String[] args) {
Out out = new Out();
out.print(20);
}
public void print(int N){
for(int i=1,count=0,n=1;i<=N;i++){
System.out.print(i+"\t");
count++;
if(count==n){
System.out.print("\n");
n++;
count=0;
}
}
}
}
public class Out {
public static void main(String[] args) {
Out out = new Out();
out.print(20);
}
public void print(int N){
for(int i=1,count=0,n=1;i<=N;i++){
System.out.print(i+"\t");
count++;
if(count==n){
System.out.print("\n");
n++;
count=0;
}
}
}
}
public class Test {
public void fun(int n) {
int m = 1;
int i = 1;
while (i <= n) {
for (int j = 1; j <= m; j++, i++) {
System.out.print(i);
}
m++;
System.out.println();
}
} public static void main(String args[]) {
new Test().fun(10);
}
}
public class Test {
public void fun(int n) {
int m = 1;
int i = 1;
while (i <= n) {
for (int j = 1; j <= m; j++, i++) {
if(i > n)
return;
System.out.print(i);
}
m++;
System.out.println();
}
}
public static void main(String args[]) {
new Test().fun(11);
}
}
public class PrintNum{
public static void main(String[] args) {
int n;
n = 8;//这个数随便由你设你设
for (int i = 1, k = 1; i < n; i++) {
for (int j = 0; j < i; j++) {
if (k > n) break;
System.out.print((k++) + " ");
}
System.out.println();
}
return;
}
}
import java.util.*;
public class Q{
public static void main(String args[]){
Scanner s=new Scanner(System.in);
System.out.print("Please input the number:");
int number=s.nextInt();
for(int i=0;i<number;i++)
{
int n=i*(i-1)/2+1;
if(n>number){break;}
for(int j=0;j<i;j++)
{
int num=i*(i-1)/2+1+j;
if(num>number){break;}
System.out.print(num);
}
System.out.println();
}
}
}
import java.util.Scanner;
import static java.lang.System.out;public class Main {
public static void main(String[] args) { Scanner cin = new Scanner(System.in);
int n = cin.nextInt();
int line = 1;
for (int i = 1; i <= n; i++) {
out.print(i + " ");
if (line * (line + 1) / 2 == i) {
out.println();
line++;
}
}
}}
import java.util.*;
public class PrintNumber {
public static void main(String[] args){
System.out.println("请输入最大数:");
Scanner scanner=new Scanner(System.in); //从键盘输入一个数
int endNum=scanner.nextInt(); //获取该整数
int count=1; //记录该行的个数的计数器
int rowNum=1; //记录第几行(行号)
for(int i=1;i<=endNum;i++){
System.out.print(i+"\t"); //输出从1到输入的那个数
if(rowNum==count){ //(1)1.当行号和该行的个数相等时,
System.out.println(); //2.输出换行,
rowNum++; //3.行号加1(即变成下一行的行号)
count=1; //4.计数器重新从1开始计数
}else{ //(2)当行号和该行的个数不相等时(说明该行的个数小于行号),计数器加1
count++;
}
}
}
}本人测试过了,并加了注释,希望楼主能理解!
import static java.lang.System.out;public class Main {
public static void main(String[] args) { Scanner cin = new Scanner(System.in);
int n = cin.nextInt();
int line = 1;
for (int i = 1; i <= n; i++) {
out.print(i + " ");
if (line * (line + 1) / 2 == i) {
out.println();
line++;
}
}
}
private void count(){
int num = 100;//需要打印的数字
int row = 1;
int maxVue = 1;
while(true){
for(int i=0;i<row;i++){
System.out.print(maxVue + "\t");
if(maxVue>=num){
break;
}
maxVue++;
}
System.out.println();
if(maxVue>num){
break;
}
row++;
}
}
import java.util.*;
public class PrintNumber { public PrintNumber() {
}
public static void main(String[] args)
{
int n=0;
int i=1;
System.out.println("请输入一个整数:");
Scanner in=new Scanner(System.in);
n=in.nextInt();
System.out.println(n);
for(int j=0;;j++)
{
for(int k=0;k<j;k++)
{
System.out.print(i++);
if(i>=(n+1)) break;
}
System.out.println();
if(i>=(n+1)) break;
}
}
}
public class PrintNumber {
public static void main( String[] args ) {
int i=1,lineNumber=1,charNumbers=1;
int input = new Scanner( System.in ).nextInt();
while ( i<=input ) {
System.out.print( i+"\t" );
if ( charNumbers == lineNumber ) {
System.out.println();
lineNumber++;
charNumbers=0;
}
charNumbers++;
i++;
}
}
}