package com.heima.string;
public class Demo2_StringCon {
/**
* public String():空构造
* public String(byte[] bytes):把字节数组转成字符串
* public String(byte[] bytes,int index,int length):把字节数组的一部分转成字符串
* public String(char[] value):把字符数组转成字符串
* public String(char[] value,int index,int count):把字符数组的一部分转成字符串
* public String(String original):把字符串常量值转成字符串
*/
public static void main(String[] args) {
String s1 = new String();
System.out.println(s1);
byte[] arr1 = {97,98,99};
String s2 = new String(arr1); //解码,将计算机读的懂的转换成我们读的懂
System.out.println(s2);
byte[] arr2 = {97,98,99,100,101,102};
String s3 = new String(arr2,2,3); //将arr2字节数组从2索引开始转换3个
System.out.println(s3);
char[] arr3 = {'a','b','c','d','e'}; //将字符数组转换成字符串
String s4 = new String(arr3);
System.out.println(s4);
String s5 = new String(arr3,1,3); //将arr3字符数组,从1索引开始转换3个
System.out.println(s5);
String s6 = new String("heima");
//String str = "heima";
System.out.println(s6);
}
}
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