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What are the eight basic data types in java

王林
王林Original
2021-01-15 15:04:5026335browse

The eight basic data types in Java are: 1. byte; 2. short; 3. int; 4. long; 5. float; 6. double; 7. char; 8. boolean.

What are the eight basic data types in java

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:

What are the eight basic data types in java

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:

What are the eight basic data types in java

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