1.基本類型轉String類型:將基本類型的值加上雙引號" "便可html
public class stringToBasic { public static void main(String[] args) { int n1 = 100; float f1 = 1.1F; double d1 = 1.5; boolean b1 = true; String s1 = n1 + ""; String s2 = f1 + ""; String s3 = d1 + ""; String s4 = b1 + ""; System.out.println(s1); System.out.println(s2); System.out.println(s3); System.out.println(s4); } }
2.String類型轉基本類型:經過基本類型的包調用Parse**便可ide
public class stringToBasic { public static void main(String[] args) { String s1 = "123"; int num1 = Integer.parseInt(s1); System.out.println(num1); // 123 double d1 = Double.parseDouble(s1); System.out.println(d1); float f1 = Float.parseFloat(s1); System.out.println(f1); Long l1 = Long.parseLong(s1); System.out.println(l1); Byte b1 = Byte.parseByte(s1); System.out.println(b1); Short sr1 = Short.parseShort(s1); System.out.println(sr1); Boolean bl1 = Boolean.parseBoolean(s1); System.out.println(bl1); } }