Programs implemented in today class (string wali)

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public class TheStringClass02 

{
public static void main(String[] args)
{
String str1 = "nat";
String str2 = "khat";

// using method
String str3 = str1.concat(str2);
System.out.println(str3);

// using + operator
String str4 = str1 + str2;
System.out.println(str4);
}
}

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public class TheStringClass03
{
public static void main(String[] args)
{
int x = 123;

// convert any type of data into string
String str = String.valueOf(x == x);

System.out.println(str);
}
}

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public class TheStringClass04
{
public static void main(String[] args)
{
String str = "cetpa";

                // check if string str starts with 'cet' or not
System.out.println(str.startsWith("cet"));

                // check if string str ends with 'pa' or not
System.out.println(str.endsWith("pa"));
}
}

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public class TheStringClass05 

{
public static void main(String[] args)
{
String str1 = "aam";
String str2 = "aaM meetha hai";

// compare str1 with str2 based on ASCII
// values of their length
int value = str1.compareTo(str2);

if(value == 0)
{
System.out.println("str1 == str2");
}
else if(value < 0)
{
System.out.println("str1 < str2");
}
else
{
System.out.println("str1 > str2");
}

}
}

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public class TheStringClass06 

{

public static void main(String[] args) 

{

String str = "Cab10gjaj0";

// get the hashcode of string

int hc = str.hashCode();

System.out.println("hashcode of "+str+" is "

+hc); 

}

}

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public class TheStringClass07 

{

public static void main(String[] args) 

{

String str = "internet";

// first index of n 

// search starts from index 0

int i = str.indexOf("n");

System.out.println("first index of n is "+i);

// first index of n 

// search start from index 2

int j = str.indexOf("n",2);

System.out.println("first index of n from index"

+ " 2 is "+j);

// last index of n

// search from index 0

int k = str.lastIndexOf("n");

System.out.println("last index of n is "+k);

// last index of n

// search from index 4

int l = str.lastIndexOf("n",4);

System.out.println("last index of n from "

+ " index 4 is "+l);

}

}

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public class StringToPrimitive 

{

public static void main(String[] args) 

{

String str = "123";

// convert string into int

int a = Integer.parseInt(str);

System.out.println("a: "+a);

// convert string into float

float b = Float.parseFloat(str);

System.out.println("b: "+b);

// convert string into long

long c = Long.parseLong(str);

System.out.println("c: "+c);

// convert string into double

double d = Double.parseDouble(str);

System.out.println("d: "+d);

}

}

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public class SubstringAssignmentOne 

{

public static void main(String[] args) 

{

String song = "chak de india !!";

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

{

System.out.print(i+":");

String otherSong = song.substring(i);

System.out.println(otherSong);

}

}

}

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public class SubstringAssignmentTwo

{

public static void main(String[] args) 

{

String song = "Jiyo re bahubali, oo";

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

{

System.out.print(i+":");

song = song.substring(i);

System.out.println(song);

}

}

}

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