String methods – Concat and contains

In this post, we will see 2 string methods which are  concat and contains.

String concat(String str):

The method appends a specified string to the end of this string.

If the length of the string is 0, after concatenating a new string will return. We can concatenate multiple strings as well as shown in the code below.

New string object
Hello world!!How are you.

boolean contains(CharSequence s):

This method finds the sequence of characters in the any string and returns true if matches ,else false.

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Shekhar Sharma

Shekhar Sharma

Shekhar Sharma is founder of This website is his window to the world. He believes that ,"Knowledge increases by sharing but not by saving".

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