java生成5组长度为10的随机大小写英文字母串，并将偶数位字母转换为大写，然后字符串反转 Java写生成一个由数字和大小写字母随机组合而成的字符串，长...
JAVA \u751f\u621010\u7ec4\u957f\u5ea6\u4e3a20\u7684\u968f\u673a\u5927\u5199\u82f1\u6587\u5b57\u6bcd\u5b57\u7b26\u4e32,\u4e00\u7ec4\u4e00\u884c\u3002import java.util.Random;
public class Test {
public static void main(String[] args) {
Random rand = new Random();
final int A = 'A', z = 'Z';
for(int i = 0; i < 10; i++){
StringBuilder sb = new StringBuilder();
while(sb.length() < 20){
int number = rand.nextInt(z + 1);
if(number >= A){
sb.append((char)number);
}
}
System.out.println(sb.toString());
}
}
}
public class Randomcode {private static String baseChars = "qwertyuiopasdfghjklzxcvbnm0123456789";public static String getChar(int len){String chars = "";for(int i=0;i<len;i++){int baseIndex = (int)(Math.random() * baseChars.length()) + 1;chars += baseChars.charAt(baseIndex);}return chars.toUpperCase();}} \u4f55\u4e3a\u968f\u673a\u6574\u6570\uff1f
public class Yugi{
public static void main(String[] args){
String word = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
String[] arr = new String[5];
for(int i = 0; i < arr.length; i++){
String str = "";
for(int j = 0; j < 10; j++){
int rand = (int)(Math.random() * word.length());
char c = word.charAt(rand);
str += c;
}
arr[i] = str;
}
for(int i = 0; i < arr.length; i++){
String str = arr[i];
String tmp = "";
for(int j = 0; j < str.length(); j++){
String c = str.charAt(j) + "";
if(j % 2 == 0){
c = c.toUpperCase();
}
tmp += c;
}
arr[i] = new StringBuilder().append(tmp).toString().reverse();
}
for(int i = 0; i < arr.length; i++){
System.out.println(arr[i]);
}
}
}
import java.util.Random;
public class Test {
public static void main(String[] args) {
//java生成5组长度为10的随机大小写英文字母串，并将偶数位字母转换为大写，然后字符串反转
String[] data = new String[]{"","","","",""};
String digits = "abcdefghijqlmnopqrstuvwxyzABCDEFGHIJQLMNOPQRSTUVWXYZ";
Random random = new Random();
//生成5组长度为10的随机大小写英文字母串
for(int i=0;i<5;i++){
for(int j=0;j<10;j++){
char c = digits.charAt(random.nextInt(52));
if(j%2 != 0){ //并将偶数位字母转换为大写
c = Character.toUpperCase(c);
}
data[i] = data[i] + c;
}
}
System.out.println("------------------反转前-----------------");
for(String s : data){
System.out.println(s);
}
for(int i=0;i<5;i++){
data[i] = reverse(data[i]);
}
System.out.println("-----------------反转后-------------------");
for(String s : data){
System.out.println(s);
}
}
public static String reverse(String str){
if(str == null || str.length() == 0){
return str;
}
int len = str.length();
StringBuilder sb = new StringBuilder(len);
for(int i=len-1;i>=0;i--){
sb.append(str.charAt(i));
}
return sb.toString();
}
}
绛旓細public class Yugi{ public static void main(String[] args){ String word = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; String[] arr = new String[5]; for(int i = 0; i < arr.length; i++){ String str = ""; for(int j = 0; j < 10; j++)...
绛旓細/** * * JAVA 涓涓湁N锛堜緥濡10锛変釜鍏冪礌鐨勬暟缁勶紝瑕佷互5涓负涓缁勯亶鍘嗚繖鍗佷釜鍏冪礌鐨勬暟缁勶紝涓嶈兘鍑虹幇閲嶅 * */public class Test939 { private static int [] tempArray; private static int count;private static int countSize; public static void main(String[] args) { int [] src=ne...
绛旓細int s[]=new int[5];for (int i = 0; i < s.length;) { s[i]=a.nextInt(10);if(CheckRandom(s,s[i],i)){ System.out.println("绗"+(i+1)+"涓殢鏈烘暟鏄:"+s[i]);i++;} } } public static boolean CheckRandom(int c[],int t,int l){//妫鏌鐢熸垚鐨闅忔満鏁版槸鍚﹀瓨鍦...
绛旓細1銆佸厛灏0-10瀛樺埌涓涓暟缁勶紙鎴栬呯被浼肩殑缁撴瀯锛変腑锛屾瘡浠庝腑鍙栧埌涓涓暟淇濆瓨鍚庯紝灏嗘暟缁勪腑鍙栧埌鐨勬暟绉婚櫎锛岄噸澶5娆″嵆鍙緱鍒颁笉閲嶅鐨勶紱2銆佸湪寰楀埌涓涓殢鏈烘暟鍚庯紝鏀捐繘涓涓暟缁勶紙鎴栬呯被浼肩殑缁撴瀯锛変腑锛岀劧鍚庣户缁幓鍙栭殢鏈烘暟锛屾瘡娆″彇鍒板悗妫鏌ユ槸涓嶆槸宸茬粡鍙栧埌杩囪繖涓暟浜嗭紝鑻ュ彇鍒拌繃锛屽垯璺宠繃鐩存帴涓嬩竴娆★紝鑻ユ湭鍙栧埌杩...
绛旓細public static void main(String[] args) { final int len = 10;double[] ary = new double[len];Scanner scanner = new Scanner(System.in);int odd = 0;//濂囨暟璁℃暟鍣 int even = 0;//鍋舵暟璁℃暟鍣 int zero = 0;//0璁℃暟鍣 int i = 0;while (i < len) { System.out.print("...
绛旓細鍐掓场鎺掑簭 绛夋柟娉曘傛垨鑰 鐢ˋrrays 杩欎釜宸ュ叿绫 瀵规暟缁勮繘琛屾帓搴忋傛瘮濡傝 int in[] = {1,6,5,8,9};Arrays.sort(in);for(int i=0;i<in.length;i++){ System.out.println(in[i]);} 杩欐牱閫氳繃鎺掑簭鍚庯紝灏卞彲浠ョ煡閬撴暟缁勪腑鐨勭涓涓拰鏈鍚庝竴涓 鍙栫涓涓拰鏈鍚庡嚑涓嵆涓烘渶灏忓拰鏈澶т簡銆
绛旓細public static void main(String[] args) { int a[]={3,4,2,5,7,1,0,9,8,6};int max,min;//鍒濆瀹氫箟鏈澶т负绗竴涓暟锛屾渶灏忎篃涓虹涓涓暟锛岀劧鍚庡啀姣旇緝寰楀綋鍓嶆渶澶э紝鏈灏忥紝姣斿畬浜嗗氨寰楀嚭浜嗘墍鏈夋暟鎹腑鏈澶х殑鍜屾渶灏忕殑鏁 max=min=a[0];for(int i=0;imax)max=a[i];if(a[i]<mi...
绛旓細import java.util.Arrays;import java.util.Random;public class Test4 {public static void main(String[] args) {int[] a = new int[10];for (int j = 0; j < a.length; j++) {int i = new Random().nextInt(100)+1;a[j]=i;}//Arrays.sort(鏁扮粍鍚嶄篃灏辨槸a)涓烘暟缁勬帓搴忕殑鎿嶄綔...
绛旓細public static double fun5(double r) { return 2 * Math.PI * r; } // 鍦嗛潰绉 public static double fun6(double r) { return Math.PI * r * r; } 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 涓炬姤| 绛旀绾犻敊 | 璇勮 0 1 qdmmy6 閲囩撼鐜:27% 鎿呴暱: JAVA鐩稿叧 鍏朵粬鍥炵瓟 JAVA涓鏈変釜绫鏄骇鐢闅忔満鏁扮殑import java.ut...
绛旓細//濡傛灉max灏忎簬涓嬫爣涓篿鐨勬暟缁勫厓绱,灏遍噸鏂拌祴鍊 if(max < n[i]) max = n[i]; } System.out.println("鏈澶:" + max);//鏄剧ず鏈澶х殑鏁 }} 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 涓炬姤| 绛旀绾犻敊 | 璇勮 1 2 涔丗reedom 閲囩撼鐜:26% 鎿呴暱: 缂栫▼璇█ JAVA鐩稿叧 鏃ヨ 涓...
