2020-03-06

Class String

Modifier and Type Method and Description
char charAt(int index)
int codePointAt(int index)
int codePointBefore(int index)
int codePointCount(int beginIndex, int endIndex)
int compareTo(String anotherString)
int compareToIgnoreCase(String str)
String concat(String str)
boolean contains(CharSequence s)
boolean contentEquals(CharSequence cs)
boolean contentEquals(StringBuffer sb)
static String copyValueOf(char[] data)
Equivalent to valueOf(char[]).
static String copyValueOf(char[] data, int offset, int count)
Equivalent to valueOf(char[], int, int).
boolean endsWith(String suffix)
boolean equals(Object anObject)
boolean equalsIgnoreCase(String anotherString)
static String format(Locale l, String format, Object... args)
Returns a formatted string using the specified locale, format string, and arguments.
static String format(String format, Object... args)
Returns a formatted string using the specified format string and arguments.
byte[] getBytes()
byte[] getBytes(Charset charset)
void getBytes(int srcBegin, int srcEnd, byte[] dst, int dstBegin)
Deprecated. 
This method does not properly convert characters into bytes. As of JDK 1.1, the preferred way to do this is via the getBytes() method, which uses the platform's default charset.
byte[] getBytes(String charsetName)
void getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin)
int hashCode()
int indexOf(int ch)
int indexOf(int ch, int fromIndex)
int indexOf(String str)
int indexOf(String str, int fromIndex)
String intern()
boolean isEmpty()
static String join(CharSequence delimiter, CharSequence... elements)
static String join(CharSequence delimiter, Iterable<? extends CharSequence> elements)
int lastIndexOf(int ch)
int lastIndexOf(int ch, int fromIndex)
int lastIndexOf(String str)
int lastIndexOf(String str, int fromIndex)
int length()
boolean matches(String regex)
int offsetByCodePoints(int index, int codePointOffset)
boolean regionMatches(boolean ignoreCase, int toffset, String other, int ooffset, int len)
boolean regionMatches(int toffset, String other, int ooffset, int len)
String replace(char oldChar, char newChar)
String replace(CharSequence target, CharSequence replacement)
String replaceAll(String regex, String replacement)
String replaceFirst(String regex, String replacement)
String[] split(String regex)
String[] split(String regex, int limit)
boolean startsWith(String prefix)
boolean startsWith(String prefix, int toffset)
CharSequence subSequence(int beginIndex, int endIndex)
String substring(int beginIndex)
String substring(int beginIndex, int endIndex)
char[] toCharArray()
String toLowerCase()
String toLowerCase(Locale locale)
String toString()
String toUpperCase()
String toUpperCase(Locale locale)
String trim()
static String valueOf(boolean b)
Returns the string representation of the boolean argument.
static String valueOf(char c)
Returns the string representation of the char argument.
static String valueOf(char[] data)
Returns the string representation of the char array argument.
static String valueOf(char[] data, int offset, int count)
Returns the string representation of a specific subarray of the char array argument.
static String valueOf(double d)
Returns the string representation of the double argument.
static String valueOf(float f)
Returns the string representation of the float argument.
static String valueOf(int i)
Returns the string representation of the int argument.
static String valueOf(long l)
Returns the string representation of the long argument.
static String valueOf(Object obj)
Returns the string representation of the Object argument.

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