JAVA: 线程池异常测试

迷南。 2022-12-17 07:02 111阅读 0赞

package com.adc.da.budget.schedule;
    
    import com.google.common.collect.Lists;
    import org.apache.batik.dom.util.HashTable;
    
    import java.util.*;
    import java.util.concurrent.*;
    
    public class TestPool {
        public static void main(String[] args) {
    
    
    
            ExecutorService executorService=new ThreadPoolExecutor(2,2,5000,TimeUnit.SECONDS,
                    new LinkedBlockingDeque<>(2)
                   , Executors.defaultThreadFactory(), new ThreadPoolExecutor.DiscardPolicy()
                   // , Executors.defaultThreadFactory(), new ThreadPoolExecutor.DiscardOldestPolicy()
                    //, Executors.defaultThreadFactory(), new ThreadPoolExecutor.CallerRunsPolicy()
                   // , Executors.defaultThreadFactory(), new ThreadPoolExecutor.AbortPolicy()
            );
    
            executorService.execute(() -> {
    
                            System.out.println("01here is: " + new Date());
                            int i = 5, j = 0;
                            int k = i / j;
                            System.out.println("01here is: " + new Date());
    
                    }
            );
    
            executorService.execute(() -> {
    
                        System.out.println("02here is: " + new Date());
                        int i = 5, j = 0;
                        int k = i / j;
                        System.out.println("02here is: " + new Date());
    
                    }
            );
    
            executorService.execute(() -> {
    
                        System.out.println("03here is: " + new Date());
                        int i = 5, j = 0;
                        int k = i / j;
                        System.out.println("03here is: " + new Date());
    
                    }
            );
    
    
            executorService.execute(() -> {
    
                        System.out.println("04here is: " + new Date());
                        int i = 5, j = 0;
                        int k = i / j;
                        System.out.println("04here is: " + new Date());
    
                    }
            );
    
            executorService.execute(() -> {
    
                        System.out.println("05here is: " + new Date());
                        int i = 5, j = 0;
                        int k = i / j;
                        System.out.println("05here is: " + new Date());
    
                    }
            );
    
    
            /*
    
               executorService.execute(() -> {
                        try {
                            System.out.println("01here is: " + new Date());
                            int i = 5, j = 0;
                            int k = i / j;
                            System.out.println("01here is: " + new Date());
                        } catch (Exception ex) {
                            System.out.println("01exception is: "+ex.getMessage());
                        }
                    }
            );
    
            executorService.execute(() -> {
                        try {
                            System.out.println("02here is: " + new Date());
                            int i = 5, j = 0;
                            int k = i / j;
                            System.out.println("02here is: " + new Date());
                        } catch (Exception ex) {
                            System.out.println("02exception is: "+ex.getMessage());
                        }
                    }
            );
    
            executorService.execute(() -> {
                        try {
                            System.out.println("03here is: " + new Date());
                            int i = 5, j = 0;
                            int k = i / j;
                            System.out.println("03here is: " + new Date());
                        } catch (Exception ex) {
                            System.out.println("03exception is: "+ex.getMessage());
                        }
                    }
            );
    
            executorService.execute(() -> {
                        try {
                            System.out.println("04here is: " + new Date());
                            int i = 5, j = 0;
                            int k = i / j;
                            System.out.println("04here is: " + new Date());
                        } catch (Exception ex) {
                            System.out.println("04exception is: "+ex.getMessage());
                        }
                    }
            );
    
    
            executorService.execute(() -> {
                        try {
                            System.out.println("05here is: " + new Date());
                            int i = 5, j = 0;
                            int k = i / j;
                            System.out.println("05here is: " + new Date());
                        } catch (Exception ex) {
                            System.out.println("05exception is: "+ex.getMessage());
                        }
                    }
            );
            */
    
    
    
            try{
                Thread.sleep(8000);
    
            }
            catch (Exception ex){
    
            }
    
            executorService.submit(() -> {
                System.out.println("【now is: 】"+new Date());
            });
    
            try{
                Thread.sleep(8000);
    
            }
            catch (Exception ex){
    
            }
    
    
            executorService.execute(() -> {
                        try {
                            System.out.println("06here is: " + new Date());
                            int i = 5, j = 0;
                            int k = i / j;
                            System.out.println("06here is: " + new Date());
                        } catch (Exception ex) {
                            System.out.println("06exception is: "+ex.getMessage());
                        }
                    }
            );
    
    
            HashSet hs=new HashSet<>();
            hs.contains("tju");
            System.out.println(hs.remove("tju"));
            HashTable ht=new HashTable();
    
            HashMap hm=new HashMap<>();
            HashMap hm2=new HashMap<>();
            hm2.put("username","liu");
            hm2.put("password","bei");
            System.out.println(hm.size());
            HashMap hm3=new HashMap(hm2);
            System.out.println(hm3.size());
    
            Set<String> ss=new HashSet<>();
            ss.add("abc");
            ss.add("def");
    
            List<String> test= Lists.newArrayList(ss);
    
             for(String tmp: test){
                 System.out.println(tmp);
             }
    
    
    
    
    
        }
    
    
    
    
    
    }