String data type conversion in JAVA

In JAVA, string is the final class, which cannot be modified. The type of string is often used in projects. The following is a common string data type conversion:

String data types are converted to seven data types: long, int, double, float, Boolean, char, etc

*  Data type conversion 

* @author Administrator

*

*/

public class  Data type conversion  {

public static void main(String[] args) {

String c="123456";

// when String data is to be converted to int, double, float, long, etc., the data must be composed of Numbers.
// when String data is converted to int, double, float, long, etc

//String to long

//String data must be numeric 
 when it is converted to long
long n=Long.parseLong(c);

System.out.println("String Type conversion to long Type: "+n);

//String to int

//String data must be numeric 
 when converted to int
int i=Integer.parseInt(c);

System.out.println("String Converted to int Type: "+i);

//String to double

//String data must be numeric 
 when converted to double
double m=Double.parseDouble(c);

System.out.println("String Converted to double Type: "+m);

//String type converts to type float

//String data must be numeric 
 when converted to float
float M=Float.parseFloat(c);

System.out.println("String Type to type float Type: "+M);

//String to Object does not involve converting the value of String directly to Object

Object L=c;

System.out.println("String Converted to Object : "+L);

//String type converted to Boolean type

String C="true";

//When the String type data value is true/false, the output is true/false

boolean N=Boolean.parseBoolean(+C);

System.out.println("String Type conversion to boolean Type: "N);

//When the String type data value is a number, character, Chinese character, or a mixture, the output is false

boolean o=Boolean.parseBoolean(c);

System.out.println("String Type conversion to boolean Type: "+o);

//String data converted to char data

//When String data is converted to char data, a char array is needed to accept 

char[] O=c.toCharArray();

System.out.print("String Type data is converted to char Type data: ");

for(int num=0;num<O.length;num++){

System.out.print(O[num]+"t");

}

System.out.println("n");

//int, double, Boolean, char, float, long, Object to String
//int is converted to String

int h=123456;

String l=String.valueOf(h);

System.out.println("int Type conversion to String Type: "+l);

//double to String

double a=1.1;

String A=String.valueOf(a);

System.out.println("double Turn type String : "+A);

// Boolean type to String type

boolean b=false;

String B=String.valueOf(b);

System.out.println("boolean Turn type String Type: "+b);

//char type to String type

char d='a';

String D=String.valueOf(d);

System.out.println("char Turn type String Type: "+d);

//char array converts to String

char[] e={'a','b','c'};

String E=String.valueOf(e);

System.out.println("char Type array to String Type: "+E);

//char array, several of which are converted to String

char []f={'a','b','c','d'};

String F=String.valueOf(f, 0, 3);

System.out.println("char Several of the data in the type array are converted to String Type: "+F);

//float converts to String

float g=123;

String G=String.valueOf(g);

System.out.println("float Type conversion to String Type: "+G);

//long to String

long j=123342;

String J=String.valueOf(j);

System.out.println("long Type conversion to String Type: "+J);

//Object is converted to String

Object k=c;

String K=String.valueOf(k);

System.out.println("Object Type conversion to String Type: "+K);

System.out.println("n");

The above code is the JAVA string data type conversion in detail, hope you like.