arrays - I need to determine if a random number is unique -

-

i need write function receives number generated in fillarray , determine if has been generated. need return true or false determining if random number must put array. here's working on. help. i've searched similar unfortunately cannot find anything.

public class randomgenerator {

int arr[] = new int[6]; int size;  public void fillarray() {     int randnum = (int) (math.random() * 49) + 1;     (int = 0; < size; i++) {          arr[i] = randnum;         alreadythere(randnum);       }     size++; }  public int alreadythere(int randnum) {     int find = randnum;     boolean found = false;     int = 0;     while (!found && < size) {         if (arr[i] == find) {             found = true;         }         i++;     }     if (!found) {     }     return randnum; }


Comments

Post a Comment

Popular posts from this blog

ssh - Vagrant Windows - ssh_exchange_identification: read: Connection reset by peer -

-
it seems can't ssh virtual box. i have virtual box running win7. host pc in win7. virtual box created through vagrant following vagrantfile. vagrant.configure("2") |config| config.vm.box = "http://aka.ms/vagrant-win7-ie11" end open cmd. go root folder of vagrantfile. execute following command: vagrant cmd displays: bringing machine 'default' 'virtualbox' provider... ==> default: clearing set forwarded ports... ==> default: clearing set network interfaces... ==> default: preparing network interfaces based on configuration... default: adapter 1: nat ==> default: forwarding ports... default: 22 (guest) => 2222 (host) (adapter 1) ==> default: booting vm... ==> default: waiting machine boot. may take few minutes... default: ssh address: 127.0.0.1:2222 default: ssh username: vagrant default: ssh auth method: private key timed out while waiting machine boot... time o...
Read more

gcc - Neither ld wrap nor LD_PRELOAD working to intercept system call -

-
i trying use -wl,-wrap=sendto -wl,-wrap,sendto in final g++ link command links app replace standard sendto function own. i compile following source code gcc -c -o wrap.o wrap.c , include wrap.o in final g++ command links app (the rest of app c++ hence use of g++) #include <stdio.h> #include <sys/types.h> #include <sys/socket.h> ssize_t __real_sendto(int, const void *, size_t, int, const struct sockaddr *, socklen_t); ssize_t __wrap_sendto ( int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen ) { printf("my wrap sendto ...\n"); return __real_sendto(sockfd, buf, len, flags, dest_addr, addrlen); } when use sendto in own source code, wrapper in fact used ok 3rd party shared objects linked against in final g++ command use sendto still use system sendto i.e. not wrapper. how can sendto wrapper used throughout ? i have tried ld_preload approach sendto , dlsym(rtld_nex...
Read more

maven - jacoco coverage per test setup -

-
i'm using jacoco in order gather code metrics , import them sonarqube missing details coverage per test. after searching came this tutorial failed make work on project. here pom.xml <properties> <sonarversion>2.4</sonarversion> <spring-framework.version>4.0.0.release</spring-framework.version> <spring-framework.security.version>3.2.5.release</spring-framework.security.version> <jackson.version>1.9.13</jackson.version> <jacoco.version>0.7.7.201606060606</jacoco.version> <aspectj.version>1.7.4</aspectj.version> <sonar.java.coverageplugin>jacoco</sonar.java.coverageplugin> <sonar.dynamicanalysis>reusereports</sonar.dynamicanalysis> <sonar.jacoco.reportpath>${project.basedir}/target/jacoco.exec</sonar.jacoco.reportpath> <sonar.jacoco.itreportpath>${project.basedir}/target/jacoco-it.exec</sonar.jacoco.itreportpath>...
Read more