2.10 문자열 -> 숫자 타입, 숫자 타입 -> 문자열

문자열 -> 숫자 타입

Byte.parseByte();

Short.parseShrot();

Integer.parseInteger();

Long.parseLong();

Float.parseFloat();

Double.parseDouble();

Boolean.parseBoolean();

 

숫자 타입 -> 문자열

String str = String.valueOf(기본타입값);

package ch02.sec10;

public class PrimitiveAndStringConversionExample {
	public static void main(String[] args) {
		int value1 = Integer.parseInt("10");
		double value2 = Double.parseDouble("3.14");
		boolean value3 = Boolean.parseBoolean("true");
		System.out.println("value1: " + value1);
		System.out.println("value2: " + value2);
		System.out.println("value3: " + value3);
		
		String str1 = String.valueOf(10);
		String str2 = String.valueOf(3.14);
		String str3 = String.valueOf(true);
		System.out.println("str1: " + str1);
		System.out.println("str2: " + str2);
		System.out.println("str3: " + str3);
		
	}
}

value1: 10
value2: 3.14
value3: true
str1: 10
str2: 3.14
str3: true