数字转换成字符串
package demo4; public class Demo5 { public static void main(String[] args) { // TODO Auto-generated method stub //数字转换成字符串 //显示转换 String strInt =String.valueOf(126); System.out.println(strInt); String strLong =String.valueOf(126L); System.out.println(strLong); String strDouble =String.valueOf(126.123456); System.out.println(strDouble); String strFloat =String.valueOf(126.12f); System.out.println(strFloat); String strBoolean =String.valueOf(false); System.out.println(strBoolean); } }
package demo4; public class Demo6 { public static void main(String[] args) { // TODO Auto-generated method stub //隐式转换 // String str = "" + 123; // String str1 = "abc" + 123; // System.out.println(str); // System.out.println(str1+468.222); String a = "1" +2 +3 +4 ; String b = 1 +2 +3 +"4" ; String c = "1" +(2 +3 +4) ; System.out.println(a);//碰到字符串后,直接输出后面内容 System.out.println(b);//碰到字符串前,先做运算,后输出内容 System.out.println(c);//碰到大括号,先运算大括号中的值,后输出内容 } }