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“java string methods” Code Answer’s

Some of the methods of String class in Java

java by Wissam

on Apr 02 2022 Comment

String first = "Wissam"; String last = new String("Fawaz");
System.out.println(first.charAt(0)); // W
System.out.println(last.charAt(last.length() - 1)); // z
String full = first.concat(" ").concat(last); 
System.out.println(full); // Wissam Fawaz		
System.out.println(first.toUpperCase()); // WISSAM
System.out.println(last.toLowerCase()); // fawaz		
System.out.println(first.equals(last)); // false
System.out.println(full.substring(full.indexOf(' ') + 1)); // Fawaz		
System.out.println(full.indexOf('a')); // 4		
System.out.println(full.lastIndexOf('a')); // 10
System.out.println(first.replace('s', 'x')); // Wixxam

string methods in java

java by Fancy Frog

on Mar 22 2022 Comment

	1	char charAt(int index)	returns char value for the particular index
	2	int length()	returns string length
	3	static String format(String format, Object... args)	returns a formatted string.
	4	static String format(Locale l, String format, Object... args)	returns formatted string with given locale.
	5	String substring(int beginIndex)	returns substring for given begin index.
	6	String substring(int beginIndex, int endIndex)	returns substring for given begin index and end index.
	7	boolean contains(CharSequence s)	returns true or false after matching the sequence of char value.
	8	static String join(CharSequence delimiter, CharSequence... elements)	returns a joined string.
	9	static String join(CharSequence delimiter, Iterable<? extends CharSequence> elements)	returns a joined string.
	10	boolean equals(Object another)	checks the equality of string with the given object.
	11	boolean isEmpty()	checks if string is empty.
	12	String concat(String str)	concatenates the specified string.
	13	String replace(char old, char new)	replaces all occurrences of the specified char value.
	14	String replace(CharSequence old, CharSequence new)	replaces all occurrences of the specified CharSequence.
	15	static String equalsIgnoreCase(String another)	compares another string. It doesn't check case.
	16	String[] split(String regex)	returns a split string matching regex.
	17	String[] split(String regex, int limit)	returns a split string matching regex and limit.
	18	String intern()	returns an interned string.
	19	int indexOf(int ch)	returns the specified char value index.
	20	int indexOf(int ch, int fromIndex)	returns the specified char value index starting with given index.
	21	int indexOf(String substring)	returns the specified substring index.
	22	int indexOf(String substring, int fromIndex)	returns the specified substring index starting with given index.
	23	String toLowerCase()	returns a string in lowercase.
	24	String toLowerCase(Locale l)	returns a string in lowercase using specified locale.
	25	String toUpperCase()	returns a string in uppercase.
	26	String toUpperCase(Locale l)	returns a string in uppercase using specified locale.
	27	String trim()	removes beginning and ending spaces of this string.
	28	static String valueOf(int value)	converts given type into string. It is an overloaded method.

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