翻译public、private、protected、static、final、abstract、synchronized ，volatile

public：公共的，表示该成员可以被任何类访问。

private：私有的，表示该成员只能被本类中的其他方法访问。

protected：受保护的，表示该成员只能被本类和其子类中的方法访问。

static：静态的，表示该成员属于类而不是对象，可以通过类名直接访问。

final：不可变的，表示该成员的值在初始化后不能被修改。

abstract：抽象的，表示该类或方法没有具体的实现，必须由子类实现。

synchronized：同步的，表示该方法在多线程环境下只能被一个线程访问。

volatile：易变的，表示该变量在多线程环境下可能发生变化，需要使用同步机制来保证线程安全。

相关问题

String[] keywords = {"abstract", "assert", "boolean", "break", "byte", "case", "catch", "char", "class", "const", "continue", "default", "do", "double", "else", "enum", "extends", "for", "final", "finally", "float", "goto", "if", "implements", "import", "instanceof", "int", "interface", "long", "native", "new", "package", "private", "protected", "public", "return", "short", "static", "strictfp", "super", "switch", "synchronized", "this", "throw", "throws", "transient", "try", "void", "volatile", "while", "true", "false", "null"}; Map<String, Integer> keywordCount = new TreeMap<>();请分析这段代码

这段代码定义了一个字符串数组`keywords`，其中存储了Java中的关键字。接着，定义了一个`Map`对象`keywordCount`，用来存储关键字与其出现次数的对应关系。这里使用了`TreeMap`作为`Map`的实现，所以关键字会按照字典序排序。

可以通过以下代码统计`keywords`中每个关键字出现的次数，并将结果存储在`keywordCount`中：

for (String keyword : keywords) {
    if (keywordCount.containsKey(keyword)) {
        keywordCount.put(keyword, keywordCount.get(keyword) + 1);
    } else {
        keywordCount.put(keyword, 1);
    }
}

遍历`keywords`数组中的每个元素，如果`keyword`已经在`keywordCount`中出现过，则将其出现次数加1；否则将其出现次数设为1并将其存入`keywordCount`中。最终，`keywordCount`中存储了每个关键字与其出现次数的对应关系。

如下的代码如何输入//Test public method public HashMap(int initialCapacity) { this(initialCapacity, DEFAULT_LOAD_FACTOR); } public HashMap(int initialCapacity, float loadFactor) { if (initialCapacity < 0) throw new IllegalArgumentException("Illegal initial capacity: " + initialCapacity); if (initialCapacity > MAXIMUM_CAPACITY) initialCapacity = MAXIMUM_CAPACITY; if (loadFactor <= 0 || Float.isNaN(loadFactor)) throw new IllegalArgumentException("Illegal load factor: " + loadFactor); this.loadFactor = loadFactor; this.threshold = tableSizeFor(initialCapacity); } exit

你可以使用以下Java代码来读入这段源码：

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        // 读入源码
        System.out.println("请输入源码：");
        String sourceCode = "";
        String line;
        while (!(line = scanner.nextLine()).equals("exit")) {
            sourceCode += line + "\n";
        }

        // 统计关键字数量
        String[] keywords = {"abstract", "assert", "boolean", "break", "byte", "case", "catch", "char", "class", "const",
            "continue", "default", "do", "double", "else", "enum", "extends", "false", "final", "finally", "float",
            "for", "goto", "if", "implements", "import", "instanceof", "int", "interface", "long", "native", "new",
            "null", "package", "private", "protected", "public", "return", "short", "static", "strictfp", "super",
            "switch", "synchronized", "this", "throw", "throws", "transient", "true", "try", "void", "volatile", "while"};

        int count = 0;
        for (String word : sourceCode.split("\\W+")) {
            if (word.isEmpty()) {
                continue;
            }
            for (String keyword : keywords) {
                if (word.equals(keyword)) {
                    count++;
                    break;
                }
            }
        }

        // 输出关键字数量
        System.out.println("源码中关键字的数量为：" + count);
    }
}

该程序会读入从键盘输入的源码，输入完毕后输入“exit”即可停止输入。程序会统计源码中Java关键字的数量，并输出这个数量。请注意，该程序只是一个简单的演示，实际应用中可能需要更为复杂的处理方式。