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public class we { public static void main(String[] args) { int[] arr=new int[30]; arr[0]=1; arr[1]=1; for(int i=2;iarr[j]) { int temp; ... 阅读全文
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package sy; public abstract class Person { private String name; private int age; public String getName() { return name; } public void setName(String name) { this... 阅读全文
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package ty; abstract class A { public abstract void fun(); }; package ty; class B extends A { public void fun() { System.out.println("what is your name?"); } }; packa... 阅读全文
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static属性和方法如何调用: 构造方法私有化(饿汉式) 空参构造自动命名(有参构造) 空参构造输出个数 static关键字 子父类 阅读全文
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package tyu; public class Person { public int id; public String name; public int age; public String city; public String introduce() { String songs = null; re... 阅读全文
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package asd; import com.rupeng.game.GameCore; public class ty implements Runnable { public static void main(String[] args){ GameCore.start(new ty()); } public void run() { ... 阅读全文
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3-1 import java.util.Scanner;public class Application { public static void main(String[] args){ int number1 =(int)(System.currentTimeMillis() % 10); i 阅读全文
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1. public class T{ public static void main (String[] args){ System.out.println("5+5="+5+5); } } 2.(a++是先使用后自增, ++a是先自增后使用 ) (1) public class G{ public 阅读全文