public static void main (){

     List<String> namos = Arrays.asList("Lucy","Ly");

     namos.add("Tom");

     Collections.sort(namos);

     System.out.println(namos);

}

class Counter {

public static int count = 0;

}

class Main {

pubic static void main(String[] args){

Counter ct = new Counter();

Counter c2 = new Counter();

c2.count++;

System.out.printin(c1 .count + "."+ c2.ccunt);

}

a=0;C=0;

do{

--c;

a=a-1;

}while(a>0)后C的值是

System.out.println(3&5)

System.out.println(-5&4)

System.out.println(7&-4)

以上代码运行结果是

System.out.println(5%4)

System.out.println(-5%4)

System.out.println(7%-4)

System.out.println((-7)%4)

以上代码运行结果是

int x = 10;

int y = 20;

int result = --x + y++;

System.out.println(result);

编译运行的结果为

public static void main(String[] args) {

              char ch = 'a';

              System.out.println(ch + 2);

       }

以上运行的结果是：

Import java.util.regex.Pattern;

public static void main(string[] args){

  String line = "This order was placed for Qr3000! OK";

String pattern = "(\\D*)(\\d+) (.x)";

Pattern r = Pattern.compile(pattern);

Matcher m  r.matcher(line) ;

if(m.find()) (

System.out.printin("MFound value:" + m.group(3));

else {

system,out.printin("NO NATCH"):

}

} 

输出结果为

for(int i:arrays){

i+=1;

}

for(int j:arrays){

       System.out.print(j+" ");

}

最终输出的结果

public class TestAnnotation{

public @interface Perform {

@Perform

public void testMethod() {

@Perform

public void test() {}

public static void main(String[] args) throws NoSuchMethodException {

Method testMethod = TestAnnotation.class.getDeclaredMethod("testMethod");

Annotation] ans = testMethod. getAnnotations();

if(testMethod != null){

System.out.printIn(ans.length);

} else {

System.out. printIn("无注解")；

}

class Book{

protected int getPrice(){

return 30;

}

}

public class ComputerBook extends Book{

}

dass Fruit{}

dass Apple exiends Fruit {}

public dass Main {

public static void main(String[] angs) (

Fruit fruits = new Apple[10];

fruits[0] = new Frun();

}

    }

private String name="Person";

int age=0;

}

public class Child extends Person{

public String grade;

public static void main(String[] args){

Person p = new Child();

System.out.println(p.name);

}

}

for(segmentA;

segmentB;

segmentC){}

   Public class Outer{

     Public class Inner{

       Public Outer getOuter(){

Return_______;

}

Public Inner getInner(){

Return new Inner();

}

Public static void main (String[] args){

Outer outer =new Outer();

Outer.Inner inner   =outer.getInner();

System.out.printLn(outer==inner.getOuter());

}

}

System.out.println(Math.abs(IntegerMIN_VALUE));

的运行结果为

public class Test extends Father {

           private String name = "test";

           public static void main(String[] args) {

                  Test test = new Test();

                  System.out.println(test.getName());

           }

}

class Father {

          private String name = "father";

          public String getName() {

              return name;

       }

}