Java Byte decode() Method

by Online Tutorials Library July 22, 2022

Java Byte decode() method

The decode() method of Java Byte class decodes a String into a Byte. It can accept decimal, hexadecimal and octal numbers.

Syntax:

Parameters:

The parameter ‘nm’ represents the String to decode.

Throws:

The decode() method throws :

NumberFormatException- if the String does not contains a parsable byte.

Return Value

This method returns a Byte object holding the byte value of string ‘nm’.

Example 1

  public class JavaByteDecodeExample1 {      public static void main(String[] args) {          String str=”12″;          //decodes a String into a Byte          Byte b1=Byte.decode(str);          System.out.println(b1);      }  }  

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Output:

Example 2

  public class JavaByteDecodeExample2 {      public static void main(String[] args) {          //for null value it will give an exception          String str=”null”;          Byte b1=Byte.decode(str);          System.out.println(b1);      }  }  

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Output:

Exception in thread "main" java.lang.NumberFormatException: For input string: "null"  at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)  at java.lang.Integer.parseInt(Integer.java:580)  at java.lang.Integer.valueOf(Integer.java:740)  at java.lang.Integer.decode(Integer.java:1197)  at java.lang.Byte.decode(Byte.java:277)  at com.TutorAspire.JavaByteDecodeExample2.main(JavaByteDecodeExample2.java:6)

Example 3

  public class JavaByteDecodeExample3 {      public static void main(String[] args) {          //for Min.VALUE value it will give an NumberFormatException          String str=”Byte.MIN_VALUE”;          Byte b1=Byte.decode(str);          System.out.println(b1);          Byte b2=Byte.MIN_VALUE;          System.out.println(b2);      }  }  

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Output:

Exception in thread "main" java.lang.NumberFormatException: For input string: "Byte.MIN_VALUE"  at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)  at java.lang.Integer.parseInt(Integer.java:580)  at java.lang.Integer.valueOf(Integer.java:740)  at java.lang.Integer.decode(Integer.java:1197)  at java.lang.Byte.decode(Byte.java:277)  at com.TutorAspire.JavaByteDecodeExample3.main(JavaByteDecodeExample3.java:7)

Next TopicJava Byte

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Java Byte decode() Method

Java Byte decode() method

Syntax:

Parameters:

Throws:

Return Value

Example 1

Example 2

Example 3

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