Java Learning Notes

First, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept

1.1 constant Pool concept.

the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

first, the basic concept1.1 constant Pool concept. the data type of 1.java.

　　int, Integer:

Long, Long:

float,Double:

BigDecimal

Char, Character:

String:

StringBuffer, Stringbuilder:

Java Learning Notes