Youtube-
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
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); } }Run this Program ▶️
2-Program to print size(in bytes) of all non-primitive datatypes (Using Wrapper classes of primitives datatypes)
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); } }Run this program▶️
3-Program to print size(in bits) of all non-primitive datatypes (Using Wrapper classes of primitives datatypes)
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); } }Run this program▶️
4-Program to print Maximum and Minimum value of all non-primitive datatypes (Using Wrapper classes of primitives datatypes)
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); } }Run this program▶️
Very good tutorial. Easy to understand.
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