Java – How to convert String into Array

 

String contains a long tail of character with special character and normal character. Converting string into Array can be done by split() method of java and StringTokenizer() method of StringTokenizer class.
We will give you both method of convert String into array.
Split method is newer method in java, StringTokenizer was old method and previous it was used.

import java.util.StringTokenizer;

public class StringToArray {

    public static void main(String[] args) {

        String str2array="Converting java String into Array";

        //1. First method with split() 
        // split(String Delimiter)
        String[] arr=str2array.split(" ");
        System.out.println("Array :"+arr.length);
        for(int i=0;i<arr.length;i++)
        {
            System.out.println("array"+i+"  :"+arr[i]);
        }

        //2. Second Method of StringTokenizer
        // StringTokenizer(String str, String delimiter)
        StringTokenizer stArr=new StringTokenizer(str2array," ");

        while(stArr.hasMoreTokens())
        {
            System.out.println("Token  :"+stArr.nextToken());
        }
    }
}

Output

Array :5
array0 :Converting
array1 :java
array2 :String
array3 :into
array4 :Array
Token :Converting
Token :java
Token :String
Token :into
Token :Array

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One Response to “Java – How to convert String into Array”

  1. Abhishek says:

    Here is the code to convert number to word format in java as per the Indian number system through user input. It works up to 999999999.

    import java.util.*;
    public class NumtoWord
    {
    public static void main(String[] args)
    {
    String a;
    Scanner s = new Scanner(System.in);
    System.out.print(“Enter a Number : “);
    a = s.next();
    int b = a.length();
    String str[] = {“1″,”One”,”2″,”Two”,”3″,”Three”,”4″,”Four”,”5″,”Five”,”6″,”Six”,
    “7″,”Seven”,”8″,”Eight”,”9″,”Nine”,”10″,”Ten”,”11″,”Eleven”,”12″,”Twelve”,”13″,
    “Thirteen”,”14″,”Forteen”,”15″,”Fifteen”,”16″,”Sixteen”,”17″,”Seventeen”,
    “18″,”Eighteen”,”19″,”Nineteen”,”20″,”Twenty”,”30″,”Thirty”,”40″,”Fourty”,
    “50″,”Fifty”,”60″,”Sixty”,”70″,”Seventy”,”80″,”Eighty”,”90″,”Ninty”,”100″,
    “Hundred”};
    System.out.println(“”);
    if (b==9)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s3= a.substring(2,3);
    String s4= a.substring(3,4);
    String s5= a.substring(4,5);
    String s6= a.substring(5,6);
    String s7= a.substring(6,7);
    String s8= a.substring(7,8);
    String s9= a.substring(8,9);
    String s10= a.substring(0,2);
    String s11= a.substring(2,4);
    String s12= a.substring(4,6);
    String s14= a.substring(7,9);
    {
    if (s10.equals(“00″))
    System.out.print(“”);
    else if (s1.equals(“1″))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print("n" + str[r+1] + " Crore ");
    }
    else
    {
    {
    for (int i=0;i<=40;i++)
    if (str[i].equals(s1))
    System.out.print("n" + str[i+37] + " ");
    }
    {
    if(s2.equals("0"))
    {
    System.out.print("Crore ");
    }
    else
    for (int j=0;j<=40;j++)
    {
    if (str[j].equals(s2))
    System.out.print(str[j+1] + " Crore ");
    }
    }
    }
    }
    {
    if (s11.equals("00"))
    System.out.print("");
    else if (s3.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s11))
    System.out.print(str[r+1] + " Lacks ");
    }
    else
    {
    {
    for (int k=0;k<=38;k++)
    if (str[k].equals(s3))
    System.out.print(str[k+37] + " ");
    }
    {
    if(s4.equals("0"))
    {
    System.out.print("Lacks ");
    }
    else
    for (int l=0;l<=38;l++)
    {
    if (str[l].equals(s4))
    System.out.print(str[l+1] + " Lacks ");
    }
    }
    }
    }
    {
    if (s12.equals("00"))
    System.out.print("");
    else if (s5.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s12))
    System.out.print(str[r+1] + " Thousand ");
    }
    else
    {
    {
    for (int m=0;m<=38;m++)
    if (str[m].equals(s5))
    System.out.print(str[m+37] + " ");
    }
    {
    if(s6.equals("0"))
    {
    System.out.print("Thousand ");
    }
    else
    for (int n=0;n<=38;n++)
    {
    if (str[n].equals(s6))
    System.out.print(str[n+1] + " Thousand ");
    }
    }
    }
    }
    {
    for (int o=0;o<=40;o++)
    if (str[o].equals(s7))
    System.out.print(str[o+1] + " Hundred ");
    }
    {
    if (s14.equals("00"))
    System.out.print("");
    else if (s8.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s14))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s8))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s9))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==8)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s3= a.substring(2,3);
    String s4= a.substring(3,4);
    String s5= a.substring(4,5);
    String s6= a.substring(5,6);
    String s7= a.substring(6,7);
    String s8= a.substring(7,8);
    String s10= a.substring(1,3);
    String s11= a.substring(3,5);
    String s12= a.substring(6,8);
    {
    if (s1.equals("0"))
    System.out.print("");
    else
    for (int i=0;i<=40;i++)
    if (str[i].equals(s1))
    System.out.print("n" + str[i+1] + " Crore ");
    }
    {
    if (s10.equals("00"))
    System.out.print("");
    else if (s2.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print(str[r+1] + " Lacks ");
    }
    else
    {
    {
    for (int k=0;k<=38;k++)
    if (str[k].equals(s2))
    System.out.print(str[k+37] + " ");
    }
    {
    if(s3.equals("0"))
    {
    System.out.print("Lacks ");
    }
    else
    for (int l=0;l<=38;l++)
    {
    if (str[l].equals(s3))
    System.out.print(str[l+1] + " Lacks ");
    }
    }
    }
    }
    {
    if (s11.equals("00"))
    System.out.print("");
    else if (s4.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s11))
    System.out.print(str[r+1] + " Thousand ");
    }
    else
    {
    {
    for (int m=0;m<=38;m++)
    if (str[m].equals(s4))
    System.out.print(str[m+37] + " ");
    }
    {
    if(s5.equals("0"))
    {
    System.out.print("Thousand ");
    }
    else
    for (int n=0;n<=38;n++)
    {
    if (str[n].equals(s5))
    System.out.print(str[n+1] + " Thousand ");
    }
    }
    }
    }
    {
    for (int o=0;o<=40;o++)
    if (str[o].equals(s6))
    System.out.print(str[o+1] + " Hundred ");
    }
    {
    if (s12.equals("00"))
    System.out.print("");
    else if (s7.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s12))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s7))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s8))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==7)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s3= a.substring(2,3);
    String s4= a.substring(3,4);
    String s5= a.substring(4,5);
    String s6= a.substring(5,6);
    String s7= a.substring(6,7);
    String s10= a.substring(0,2);
    String s11= a.substring(2,4);
    String s12= a.substring(5,7);
    {
    if (s10.equals("00"))
    System.out.print("");
    else if (s1.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print(str[r+1] + " Lacks ");
    }
    else
    {
    {
    for (int k=0;k<=38;k++)
    if (str[k].equals(s1))
    System.out.print(str[k+37] + " ");
    }
    {
    if(s2.equals("0"))
    {
    System.out.print("Lacks ");
    }
    else
    for (int l=0;l<=38;l++)
    {
    if (str[l].equals(s2))
    System.out.print(str[l+1] + " Lacks ");
    }
    }
    }
    }
    {
    if (s11.equals("00"))
    System.out.print("");
    else if (s3.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s11))
    System.out.print(str[r+1] + " Thousand ");
    }
    else
    {
    {
    for (int m=0;m<=38;m++)
    if (str[m].equals(s3))
    System.out.print(str[m+37] + " ");
    }
    {
    if(s4.equals("0"))
    {
    System.out.print("Thousand ");
    }
    else
    for (int n=0;n<=38;n++)
    {
    if (str[n].equals(s4))
    System.out.print(str[n+1] + " Thousand ");
    }
    }
    }
    }
    {
    for (int o=0;o<=40;o++)
    if (str[o].equals(s5))
    System.out.print(str[o+1] + " Hundred ");
    }
    {
    if (s12.equals("00"))
    System.out.print("");
    else if (s6.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s12))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s6))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s7))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==6)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s3= a.substring(2,3);
    String s4= a.substring(3,4);
    String s5= a.substring(4,5);
    String s6= a.substring(5,6);
    String s10= a.substring(1,3);
    String s11= a.substring(4,6);

    {
    if(s1.equals("0"))
    System.out.print("");
    else
    {
    for (int j=0;j<=40;j++)
    if (str[j].equals(s1))
    System.out.print(str[j+1] + " Lacks ");
    }
    }
    {
    if (s10.equals("00"))
    System.out.print("");
    else if (s2.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print(str[r+1] + " Thousand ");
    }
    else
    {
    {
    for (int m=0;m<=40;m++)
    if (str[m].equals(s2))
    System.out.print(str[m+37] + " ");
    }
    {
    if(s3.equals("0"))
    {
    System.out.print("Thousand ");
    }
    else
    for (int n=0;n<=38;n++)
    {
    if (str[n].equals(s3))
    System.out.print(str[n+1] + " Thousand ");
    }
    }
    }
    }
    {
    if(s4.equals("0"))
    System.out.print("");
    else
    {
    for (int o=0;o<=40;o++)
    if (str[o].equals(s4))
    System.out.print(str[o+1] + " Hundred ");
    }
    }
    {
    if (s11.equals("00"))
    System.out.print("");
    else if (s5.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s11))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s5))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s6))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==5)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s3= a.substring(2,3);
    String s4= a.substring(3,4);
    String s5= a.substring(4,5);
    String s10= a.substring(0,2);
    String s11= a.substring(3,5);
    {
    if (s10.equals("00"))
    System.out.print("");
    else if (s1.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print(str[r+1] + " Thousand ");
    }
    else
    {
    {
    for (int m=0;m<=38;m++)
    if (str[m].equals(s1))
    System.out.print(str[m+37] + " ");
    }
    {
    if(s2.equals("0"))
    {
    System.out.print("Thousand ");
    }
    else
    for (int n=0;n<=38;n++)
    {
    if (str[n].equals(s2))
    System.out.print(str[n+1] + " Thousand ");
    }
    }
    }
    }
    {
    for (int o=0;o<=40;o++)
    if (str[o].equals(s3))
    System.out.print(str[o+1] + " Hundred ");
    }
    {
    if (s11.equals("00"))
    System.out.print("");
    else if (s4.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s11))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s4))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s5))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==4)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s3= a.substring(2,3);
    String s4= a.substring(3,4);
    String s10= a.substring(2,4);
    {
    if(s1.equals("0"))
    System.out.print("");
    else
    {
    for (int j=0;j<=40;j++)
    if (str[j].equals(s1))
    System.out.print(str[j+1] + " Thousand ");
    }
    }
    {
    if(s2.equals("0"))
    System.out.print("");
    else
    {
    for (int o=0;o<=40;o++)
    if (str[o].equals(s2))
    System.out.print(str[o+1] + " Hundred ");
    }
    }
    {
    if (s10.equals("00"))
    System.out.print("");
    else if (s3.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s3))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s4))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==3)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s3= a.substring(2,3);
    String s10= a.substring(1,3);
    {
    if(s1.equals("0"))
    System.out.print("");
    else
    {
    for (int o=0;o<=40;o++)
    if (str[o].equals(s1))
    System.out.print(str[o+1] + " Hundred ");
    }
    }
    {
    if (s10.equals("00"))
    System.out.print("");
    else if (s2.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s2))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s3))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==2)
    {
    String s1= a.substring(0,1);
    String s2= a.substring(1,2);
    String s10= a.substring(0,2);
    {
    if (s10.equals("00"))
    System.out.print("");
    else if (s1.equals("1"))
    {
    for (int r=0;r<=40;r++)
    if (str[r].equals(s10))
    System.out.print(str[r+1]);
    System.out.print("n");
    }
    else
    {
    for (int p=0;p<=40;p++)
    if (str[p].equals(s1))
    System.out.print(str[p+37]);
    for (int q=0;q<=40;q++)
    {
    if (str[q].equals(s2))
    System.out.print(" " + str[q+1]);
    }
    }
    System.out.print("n");
    }
    }
    else if (b==1)
    {
    String s1= a.substring(0,1);
    for (int q=0;q<=40;q++)
    if (str[q].equals(s1))
    System.out.print(" " + str[q+1]);
    }
    System.out.println("n");
    }
    }
    // By Abhishek Singh (abhishek_singh_rajawat@yahoo.co.in).