The eight basic data types in Java are: 1. byte; 2. short; 3. int; 4. long; 5. float; 6. double; 7. char; 8. boolean.
The operating environment of this article: windows10 system, java 1.8, thinkpad t480 computer.
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Detailed introduction:
The 8 basic data types in Java, their names, number of digits , default value, value range and examples are shown in the following table:
Example verification:
package com.ce.test; class Test { static byte b; static short s; static int i; static long l; static float f; static double d; static char c; static boolean bo; public static void main(String[] args) { System.out.println("byte的大小："+Byte.SIZE +";默认值："+b +";数据范围："+Byte.MIN_VALUE+" - "+Byte.MAX_VALUE); System.out.println("short的大小："+Short.SIZE +";默认值："+s +";数据范围："+Short.MIN_VALUE+" - "+Short.MAX_VALUE); System.out.println("int的大小："+Integer.SIZE +";默认值："+i +";数据范围："+Integer.MIN_VALUE+" - "+Integer.MAX_VALUE); System.out.println("long的大小："+Long.SIZE +";默认值："+l +";数据范围："+Long.MIN_VALUE+" - "+Long.MAX_VALUE); System.out.println("float的大小："+Float.SIZE +";默认值："+f +";数据范围："+Float.MIN_VALUE+" - "+Float.MAX_VALUE); System.out.println("double的大小："+Double.SIZE +";默认值："+d +";数据范围："+Double.MIN_VALUE+" - "+Double.MAX_VALUE); System.out.println("char的大小："+Character.SIZE +";默认值："+c +";数据范围："+Character.MIN_VALUE+" - "+Character.MAX_VALUE); System.out.println("boolean的大小："+Byte.SIZE +";默认值："+bo +";数据范围："+Byte.MIN_VALUE+" - "+Byte.MAX_VALUE); } }
The output result on the console is as shown below:
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