Note:AcharSequenceis a sequence of characters such as:String,CharBuffer,StringBufferetc. contains() Return Value returns trueif the string contains the specified character returns falseif the string doesn't contain the specified character Example 1: Java String contains() classMain{publicstaticvoidmai...
String,StringBuffer,CharBufferetc. areCharSequenceas these classes implement it. join() Return Value returns a string Example 1: Java String join() With CharSequence() classMain{publicstaticvoidmain(String[] args){ String result; result = String.join("-","Java","is","fun"); System.out.p...