Method insert

vm/JavaAPI/src/java/lang/StringBuilder.java:324–327

Inserts the string representation of the boolean argument into this string builder. The second argument is converted to a string as if by the method String.valueOf, and the characters of that string are then inserted into this string builder at the indicated offset. The offset argument must be great

(int offset, boolean b)

     * The offset argument must be greater than or equal to 0, and less than or equal to the length of this string builder.
     */
    public java.lang.StringBuilder insert(int offset, boolean b){
        if(b) return insert(offset, "true"); 
        return insert(offset, "false"); 
    }

    /**
     * Inserts the string representation of the char argument into this string builder.