string manipulation functions available in Java code example

Example 1: string method example in java

public char charAt(int index)
-----------------------------
String x = "airplane";
System.out.println( x.charAt(2) ); // output is 'r'

Example 2: string method example in java

public String substring(int begin)/ public String substring(int begin, int end)
------------------------------------------------------------------------------
String x = "0123456789"; // the value of each char is the same as its index!
System.out.println( x.substring(5) ); // output is "56789"
System.out.println( x.substring(5, 8)); // output is "567"

Example 3: string method example in java

public String trim()

String x = " hi ";
System.out.println( x + "x" ); // result is" hi x"
System.out.println(x.trim() + "x"); // result is "hix"