How to Use String.Split mehod in java

How to Use String.Split mehod in java

In java split mothod is woking with the characters a-z and numbers 0-9 is good.

Using single character:

Example:

package com.javanotes2all.java.string;

public class Split_String

{

public static void main(String[] args)

{

String s="com.javanotes2all_$_java.developer";

/**

* Split with characters

*/

System.out.println("=============split using character");

String[] s1=s.split("j");

System.out.println(s1.length);

for(int i=0;i<s1.length;i++)

System.out.println(s1[i]);

/**

* Split with numbers

*/

System.out.println("==============split using number");

String[] s2=s.split("2");

System.out.println(s2.length);

for(int i=0;i<s2.length;i++)

System.out.println(s2[i]);

}

}

output:

=============split using character

3

com.

avanotes2all_$_

ava.developer

==============split using number

2

com.javanotes

all_$_java.developer

Using multiple characters:

Example:

package com.javanotes2all.java.string;

public class Split_String

{

public static void main(String[] args)

{

String s="com.javanotes2211all_$_java.developer";

/**

* Split with characters

*/

System.out.println("=============split using characters");

String[] s1=s.split("java");

System.out.println(s1.length);

for(int i=0;i<s1.length;i++)

System.out.println(s1[i]);

/**

* Split with numbers

*/

System.out.println("==============split using numbers");

String[] s2=s.split("211");

System.out.println(s2.length);

for(int i=0;i<s2.length;i++)

System.out.println(s2[i]);

}

}

Output:

=============split using characters

3

com.

notes2211all_$_

.developer

==============split using numbers

2

com.javanotes2

all_$_java.developer

Useing Special Characters:

But the problem with special characters like $ , . etc

Example:

package com.javanotes2all.java.string;

public class Split_String

{

public static void main(String[] args)

{

String s="com.javanotes2all_$_java.developer";

/**

* Split with characters

*/

System.out.println("=============split using single special character");

String[] s1=s.split(".");

System.out.println("array length:="+s1.length);

for(int i=0;i<s1.length;i++)

System.out.println(s1[i]);

/**

* Split with numbers

*/

System.out.println("==============split using multiple special characters");

String[] s2=s.split("_$_");

System.out.println("array length:="+s2.length);

for(int i=0;i<s2.length;i++)

System.out.println(s2[i]);

}

}

output:

=============split using single special character

array length:=0

==============split using multiple special characters

array length:=1

com.javanotes2all_$_java.developer

Which is wrong output

solution:

Use escaple sequence.

Example:

package com.javanotes2all.java.string;

public class Split_String

{

public static void main(String[] args)

{

String s="com.javanotes2all_$_java.developer";

/**

* Split with characters

*/

System.out.println("=============split using single special character");

String[] s1=s.split("\\.");

System.out.println("array length:="+s1.length);

for(int i=0;i<s1.length;i++)

System.out.println(s1[i]);

/**

* Split with numbers

*/

System.out.println("==============split using multiple special characters");

String[] s2=s.split("\\_\\$\\_");

System.out.println("array length:="+s2.length);

for(int i=0;i<s2.length;i++)

System.out.println(s2[i]);

}

}

output:

=============split using single special character

array length:=3

com

javanotes2all_$_java

developer

==============split using multiple special characters

array length:=2

com.javanotes2all

java.developer