Step 4:Datatypes : 2nd Day +code

1-Data Types in Java

Primitive Data type(predefined)–

-int
-short
-long
-float
-double
-char
-byte
-boolean

Non-Primitive Data type (Referenced/Developer/User defined)-

-String
-Arrays
-Classes
-etc

1-Program to show declaration,instantiation, initialization of all primitive datatypes & non primitive String and then print their values.
declaration-assigning of name
instantiation-assigning memory
initialization-assigning values

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package dataype1;   public class Dt {   public static void main(String[] args) {   double d=137.98d; float f=23.2f; long l=997511632l; int i=45; char v='a'; short s=23; byte b= 67; boolean b1=true;   String s6="ngfgdgd  utuytuytb 76575";   System.out.println(d); System.out.println(f); System.out.println(l); System.out.println(i); System.out.println(v); System.out.println(s); System.out.println(b1); System.out.println(s6); } }

2-Program to print size(in bytes) of all non-primitive  datatypes

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package dataype1;   public class Dt1 {   public static void main(String[] args) {    System.out.println(Double.BYTES);  System.out.println(Float.BYTES);  System.out.println(Long.BYTES);  System.out.println(Integer.BYTES);  System.out.println(Character.BYTES);  System.out.println(Short.BYTES);  System.out.println(Byte.BYTES); } }

3-Program to print size(in bits) of all non-primitive  datatypes

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package dataype1;   public class Dt2 {   public static void main(String[] args) {    System.out.println(Double.SIZE);  System.out.println(Float.SIZE);  System.out.println(Long.SIZE);  System.out.println(Integer.SIZE);  System.out.println(Character.SIZE);  System.out.println(Short.SIZE);  System.out.println(Byte.SIZE); } }

4-Program to print Maximum  and Minimum value of all non-primitive  datatypes

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package dataype1;   public class Dt3 {   public static void main(String[] args) {   System.out.println(Double.MAX_VALUE); System.out.println(Float.MAX_VALUE); System.out.println(Long.MAX_VALUE); System.out.println(Integer.MAX_VALUE); System.out.println(Character.MAX_VALUE+0); System.out.println(Short.MAX_VALUE); System.out.println(Byte.MAX_VALUE);   System.out.println(Double.MIN_VALUE); // System.out.println(Float.MIN_VALUE); System.out.println(Long.MIN_VALUE); System.out.println(Integer.MIN_VALUE); System.out.println(Character.MIN_VALUE+0); System.out.println(Short.MIN_VALUE); System.out.println(Byte.MIN_VALUE); } }