「Java」StringBuilderクラスに文字列を追加するサンプル
書式
public StringBuilder append(String str)
指定された文字列をこの文字シーケンスに追加します。
使用例
package com.arkgame.study;
public class StringbuilderDemo {
private static String target = "study skill ";
public static void main(String[] args) {
System.out.println("追加前文字列: " + target);
StringBuilder sb = new StringBuilder(target);
sb.append("and become smart");
String res = sb.toString();
System.out.println("追加後文字列: " + res);
}
}
package com.arkgame.study;
public class StringbuilderDemo {
private static String target = "study skill ";
public static void main(String[] args) {
System.out.println("追加前文字列: " + target);
StringBuilder sb = new StringBuilder(target);
sb.append("and become smart");
String res = sb.toString();
System.out.println("追加後文字列: " + res);
}
}
package com.arkgame.study;
public class StringbuilderDemo {
private static String target = "study skill ";
public static void main(String[] args) {
System.out.println("追加前文字列: " + target);
StringBuilder sb = new StringBuilder(target);
sb.append("and become smart");
String res = sb.toString();
System.out.println("追加後文字列: " + res);
}
}
結果
追加前文字列: study skill
追加後文字列: study skill and become smart