1.

abstract class Name {
private String name;
public abstract boolean isStupidName(String name) {}
}
2.
public class Something {
void doSomething () {
private String s = "";
int l = s.length();
}
3.
abstract class Something {
private abstract String doSomething ();
}
4.
public class Something {
public static void main(String[] args) {
Other o = new Other();
new Something().addOne(o);
}
public void addOne(final Other o) {
o.i++;
}
}
class Other {
public int i;
}
5.
class Something {
int i;
public void doSomething() {
System.out.println("i = " + i);
}
}
6.
class Something {
final int i;
public void doSomething() {
System.out.println("i = " + i);
}
}
7.
public class Something {
public static void main(String[] args) {
Something s = new Something();
System.out.println("s.doSomething() returns " + doSomething());
}
public String doSomething() {
return "Do something ...";
}
}
8.
interface A{
int x = 0;
}
class B{
int x =1;
}
class C extends B implements A {
public void pX(){
System.out.println(x);
}
public static void main(String[] args) {
new C().pX();
}
}
9.
interface Playable {
void play();
}
interface Bounceable {
void play();
}
interface Rollable extends Playable, Bounceable {
Ball ball = new Ball("PingPang");
}
class Ball implements Rollable {
private String name;
public String getName() {
return name;
}
public Ball(String name) {
this.name = name;
}
public void play() {
ball = new Ball("basketball");
System.out.println(ball.getName());
}

什么意思

冰霜之卅 发表于 2015-12-2 21:22
什么意思

就是修饰符之类的用法有没有错误

活的精彩 发表于 2015-12-4 21:19
就是修饰符之类的用法有没有错误

当然有错误
还很多
作业吧。。