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Strings immutable.

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This means that elements of a string cannot be changed once it has been assigned.

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Say for example you want to change the letter Y the Character Y in the string a country to E.

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So let's see if we can do that.

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String 1 0 6 let's try and change it to the character e so the interpreter has drawn a letter saying

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that the string object does not support item assignment.

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That means you can not change any of the elements within the string.

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Until now we have performed a lot of operations like indexing or slicing on the string.

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So did we change the value of the original string.

10
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Let us check that so this is a word or orginally string SD.

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Odd one.

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So we have done a lot of slicing operations on this particular string.

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Let's see if it has changed or not.

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Note it is the same as we have deplaned so for String objects all of the different functions and method

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that we call on a string do not affect the original string value

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but what we can do is create a new string that is a variation of the original.

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So like integers and plotting by numbers String objects are immutable so we have a string a defined

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as happy.

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Now I want to change the text to be happy

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but as put our discussions.

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String red bills are immutable so we cannot change any of the characters in the variable that has already

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been defined.

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So in order to have this text displayed I'm going to create a model variable B which bind to the text

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b e

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so I'm not going to change the order journal dream what I'm going to do is I'm going to contact in need

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the strings B and A in case of numbers the plus operator will be an operator for additions but when

27
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it is used with strings it is a joining operator.

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So the variable C will now bind to the text.

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B.

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And this joining all four strings together.

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End to end to create a new string is known as concatenation and for concatenation we use the less operator

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so concatenation is joining of two or more strings into a single one to concatenate two strings in the

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Jupiter note so we have variable E which is binding to the text.

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B let's define another way to build B with two B.

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Net concatenate the two strings

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and then c so C is now pointing to this text if you want to have a space included between these two

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strings.

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In that case you can have a space when would define B.

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And then execute so she is now binding to the text.

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Be happy.

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Writing to string literally together also concatenate them like the plus operator.

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Say for example if we bind the strings.

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B.

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And happy together.

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The interpreter will automatically concatenate them and give the output as one single liquid and be

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happy.

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This is about the concatenation the next topic.

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String the replication the start operator is useful string the application and this can be used to repeat

49
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a string for a given number of times so let's repeat the string a five times using the string replication

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operator.

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So that string replication we can repeat the single string value the amount of times equal into the

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integer value.