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package com.example.aa; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.app.Activity; import android.view.Vi 阅读全文
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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_ 阅读全文
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package aaa; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Set; public class Text { public static void m 阅读全文
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package yidong; import java.util.ArrayList; import java.util.List; public class Text { public static void main(String[] args) { List list = new ArrayL 阅读全文
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package yidong; import java.util.Random; public class Text { public static void main(String[] args) { int a[] = new int[10]; Random r = new Random(); 阅读全文
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package awm; public class text { public static void main(String[] args) { String s = "HelloWorld"; char[] a = s.toCharArray(); StringBuffer buffer = n 阅读全文
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package llm; public abstract class Shape { protected double area; protected double per; protected String color; public Shape() { } public Shape(String 阅读全文
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package mmm; public class ColaEmployee { String name; int month; public ColaEmployee() { } public ColaEmployee(String name, int month) { super(); this 阅读全文
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package llm; public abstract class Vehicle { private String brand; private String color; private double speed; public Vehicle(String brand, String col 阅读全文