press0

public class BST <T extends Comparable<T>> implements Iterable<T>
{
   public static void main(String[] args)
   {
      Integer[] a = {1,5,2,7,4};
      BST<Integer> bst = new BST<Integer>();
      for(Integer n : a) bst.insert(n);

      bst.preOrderTraversal();
      System.out.println();

press0

alias tdebug='cd /opt/tomcat; bin/catalina.sh jpda start; cd - > /dev/null'
alias tlogd='rm /opt/tomcat/logs/*'
alias tstart='cd /opt/tomcat; bin/startup.sh; cd - > /dev/null'
alias tstat='ps -ef|grep tomcat|grep -v grep'
alias tstop='/opt/tomcat/bin/shutdown.sh'


//void arrays - Which of the following doesn’t compile

void[] voids1 = new void[1]; (1)

press0

ApplicationContext ctx = SpringApplication.run(Application.class, args);
String[] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames) {
    System.out.println(beanName);
}

press0

# get all 2 char unix utilities
for i in /usr/local/sbin /usr/local/bin /usr/sbin /usr/bin /sbin /bin ; do find $i >> qq ; done
while read i; do basename $i >> qq.basename ; done < qq
cat qq.basename |sort|uniq|grep  -w '^\w\{2\}$' > qq.basename.sort.2
# print man description
while read i; do man -f $i >> qq.basename.sort.2.man ; done < qq.basename.sort.2

7z (1)               - A file archiver with highest compression ratio
ar (1)               - create, modify, and extract from archives
as (1)               - the portable GNU assembler.