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用 while loop 算 s=3*3+4*4+....88*88
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33, 45, 87, 99, 27 算平均
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計算你上學期加權平均
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輸出課表代碼矩陣 Hint: 2-D array, double-for loop
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產生10個0~99的亂數存在a[10] 中
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請用格式化輸出排 9x9乘法表 hint: double-for, "%nd"
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連續複利
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問int怎麼存-689這個數字。 int用4個bytes。 答案請用16進位表達。
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請用C/C++ 程式計算 S=1*1+2*2+3*3+4*4+.....+20*20=?
15 則留言:
import java.security.SecureRandom;
import java.util.Random;
public class aa {
public static void main(String[] args) {
Random rnd= new SecureRandom();
int[]x=new int[7];
outer: for(int i=0; i<x.length; i++){
x[i]=rnd.nextInt(49)+1;
for(int j=0; j<i; j++){
if(x[j]==x[j]){
i--;
continue outer;
}
}
System.out.print("x["+i+"]="+x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Random;
public class aa {
public static void main(String[] args) {
Random rnd= new SecureRandom();
int[]x=new int[7];
outer: for(int i=0; i<x.length; i++){
x[i]=rnd.nextInt(49)+1;
for(int j=0; j<i; j++){
if(x[j]==x[j]){
i--;
continue outer;
}
}
System.out.print("x["+i+"]="+x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Random;
public class aa {
public static void main(String[] args) {
Random rnd= new SecureRandom();
int[]x=new int[7];
outer: for(int i=0; i<x.length; i++){
x[i]=rnd.nextInt(49)+1;
for(int j=0; j<i; j++){
if(x[j]==x[j]){
i--;
continue outer;
}
}
System.out.print("x["+i+"]="+x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class ex1 {
public static void main(String[] args) {
System.out.println("產生亂數");
SecureRandom rnd=new SecureRandom();
int [] x=new int[7];
for(int i=0;i<x.length; i++){
x[i]=rnd.nextInt(49)+1;
outer: for(int j=0; j<i; j++){
if(x[j]==x[i]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0; i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class gvfdgfrgfdrgthgbfgf {
public static void main(String[] args) {
System.out.println("亂數產生");
SecureRandom rnd=new SecureRandom();
int [] x=new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=rnd.nextInt(49)+1;
for (int j = 0; j < i;j++) {
if(x[j]==x[i]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0; i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
package aaa;
import java.security.SecureRandom;
import java.util.Arrays;
public class bbbbb {
public static void main(String[] args) {
System.out.println("產生亂數");
SecureRandom rnd=new SecureRandom();
int [] x=new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=rnd.nextInt(49)+1;
for (int j = 0; j < i;j++) {
if(x[j]==x[i]) {
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0; i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class ex2 {
public static void main(String[] args) {
System.out.println("產生亂數");
SecureRandom rnd= new SecureRandom();
int[] x=new int[7];
outer: for(int i=0; i<x.length; i++){
x[i]=rnd.nextInt(49)+1;
for(int j=0; j<i; j++){
if(x[j]==x[i]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0; i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class ex3 {
public static void main(String[] args) {
SecureRandom rnd=new SecureRandom();
System.out.println("產生亂數");
int x[]=new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=rnd.nextInt(49)+1;
for(int j=0;j<i;j++){
if(x[i]==x[j]){
i--;
continue outer;
}
}
}
System.out.println();
Arrays.sort(x);
for(int i=0;i<x.length;i++)
System.out.print(x[i]+"\t");
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class ex4 {
public static void main(String[] args) {
SecureRandom rnd=new SecureRandom();
System.out.println("產生亂數");
int[] x=new int[7];
outer: for(int i=0;i<x.length; i++){
x[i]=rnd.nextInt(49)+1;
for(int j=0; j<i;j++){
if(x[i]==x[j]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0;i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class ex3 {
public static void main(String[] args) {
System.out.println("產生亂數");
SecureRandom r = new SecureRandom();
int x[] = new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=r.nextInt(49)+1;
for(int j=0;j<i;j++){
if(x[i]==x[j]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0;i<x.length;i++)
System.out.print(x[i]+"\t");
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class a4 {//大樂透
public static void main(String[] args) {
SecureRandom rnd=new SecureRandom(); //產生安全亂數
int[] x=new int[7];//7個位子 0123456
outer: for(int i=0;i<x.length;i++){//
x[i]=rnd.nextInt(49)+1;
for(int j=0;j<i;j++){
if(x[j]==x[i]){
i--;
continue outer;
}
}
System.out.print("["+i+"]="+x[i]+"\t");
}
System.out.println();
Arrays.sort(x);
for(int i=0;i<x.length;i++){
System.out.print("["+i+"]="+x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
public class yjhg {
public static void main(String[] args) {
SecureRandom rnd=new SecureRandom();
int [] x=new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=rnd.nextInt(49)+1;
for (int j = 0; j < i;j++) {
if(x[j]==x[i]){
i--;
continue outer;
}
}
System.out.println("x[" + i + "]=" + x[i] + "\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class bv2 {
public static void main(String[] args) {
System.out.println("亂數產生");
SecureRandom rnd=new SecureRandom();
int [] x=new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=rnd.nextInt(49)+1;
for (int j = 0; j < i;j++) {
if(x[j]==x[i]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0; i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class bv2 {
public static void main(String[] args) {
System.out.println("亂數產生");
SecureRandom rnd=new SecureRandom();
int [] x=new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=rnd.nextInt(49)+1;
for (int j = 0; j < i;j++) {
if(x[j]==x[i]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0; i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
import java.security.SecureRandom;
import java.util.Arrays;
public class bv2 {
public static void main(String[] args) {
System.out.println("亂數產生");
SecureRandom rnd=new SecureRandom();
int [] x=new int[7];
outer: for(int i=0;i<x.length;i++){
x[i]=rnd.nextInt(49)+1;
for (int j = 0; j < i;j++) {
if(x[j]==x[i]){
i--;
continue outer;
}
}
}
Arrays.sort(x);
for(int i=0; i<x.length; i++){
System.out.print(x[i]+"\t");
}
System.out.println();
}
}
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