Java字符串中的底层容器是什么?

是的,加上一些元数据,比如开始索引和结束索引(因为char数组可以跨字符串共享,例如,创建子字符串时)。

正在查找源 java.lang.String ,您将看到以下实例字段:

/** The value is used for character storage. */
private final char value[];

/** The offset is the first index of the storage that is used. */
private final int offset;

/** The count is the number of characters in the String. */
private final int count;

/** Cache the hash code for the string */
private int hash; // Default to 0